Common Core Math

6 Times Multiplication Table is an important table in maths as most of the questions are based on it. Many of the students may feel that it is very difficult to learn and remember the 6 Times Table Multiplication Chart. But it is not, six table is nothing but multiplying the whole numbers with 6. Learning the Math Multiplication Table Charts from 0 to 25 is necessary at the time of primary schooling. Remembering the 6 Times Table enhances skills throughout your learning stages. Get the easy tricks to memorize the multiplication chart of 6, know how to read and write 6 table.

Six Times Table Multiplication Chart

Here, we will find the Multiplication Table of 6 in an image format to download and practice daily. This, 6 Times Table Multiplication Chart image is useful for future reference. So, download 6 Multiplication Table Image, paste a printed copy on your walls to refer regularly and solve more basic multiplication, division mathematical problems easily and quickly.

Writing 6 Times Table | Multiplication Table of 6 Up to 20

Get the 6 Times Table Multiplication Chart in the tabular format in the below sections and know how to write the 6 table. We have given the first 20 multiples of 6 here for your comfort. Use this handy and free Multiplication Table of 6 Chart to perform the arithmetic operations quickly. Have a deeper insight into the multiplication process by availing the 6 Multiplication Table present here.

Tips & Tricks to Memorize 6 Times Table

To memorize the 6 Times Table Multiplication Chart, have a look at the tricks mentioned here.

• Generally, multiples of 6 are multiples of both 2 and 3.
• If you multiply an even number with 6 the result will be the same even number in the unit digit i.e 6 x 2 = 12, 6 x 6 = 36, 6 x 8 = 48 and so on
• You can also learn the 6 Multiplication Table using the skip counting process.

How to Read Multiplication Table of 6 in Words?

One time six is 6.

Two times six is 12.

Three times six is 18.

Four times six is 24.

Five times six is 30.

Six times six is 36.

Seven times six is 42.

Eight times six is 48.

Nine times six is 54.

Ten times six is 60.

Why one Should Learn 6 Times Multiplication Table Chart

Learning the 6 Times Table Multiplication Chart is important and it has several advantages and they are listed along the lines.

• You can solve all the mathematical problems involving division, multiplication easily by learning the Multiplication Table of 6.
• This 6 Times Multiplication Table makes you perfect in performing the quick calculations.
• 6 Times Multiplication Chart is helpful to understand the patterns easily.
• It can be a great savior to do your mental math calculations right in your head.

Get More Math Table Multiplication Charts

Solved Examples on 6 Times Table Multiplication Chart

Example 1:

What does 6 × 7 mean? What number is it equal to?

Solution:

6 x 7 means multiply 6 with 7 or 6 times 7

6 x 7 = 42

Therefore, 42 is equal to 6 times 7.

Example 2:

Eashwar eats 2 apples per day. How many apples will he eat in 6 days?

Solution:

Given that,

The number of apples Eashwar eats in a day = 2

The number of apples Eashwar eats in 6 days = 6 x 2

= 12

Therefore, Eashwar eats 12 apples in 6 days.

Example 3:

(i) How many sixes in 42?

(ii) How many sixes in 30?

(iii) How many sixes in 66?

Solution:

(i)

42 = 6 + 6 + 6 + 6 + 6 + 6 + 6

So, there are 7 sixes in 42.

(ii)

30 = 6 + 6 + 6 + 6 + 6

So, there are 5 sixes in 30.

(iii)

66 = 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6

So, there are 11 sixes in 66.

Example 4:

(i) What are 6 fives?

(ii) 12 times 6?

(iii) What is 4 multiplied by 6?

(iv) sixes 7?

Solution:

(i)

6 fives means 6 x 5 = 30

(ii)

12 times 6 means multiply 6 with 12

6 x 12 = 72

(iii)

4 multiplied by 6 means 6 times 4.

6 x 4 = 24.

(iv)

Sixes 7 means 6 times 7

6 x 7 = 42.

FAQs on 6 Multiplication Table

1. Is there a pattern in the 6 times table?

Multiples of 6 are multiples of 2 and 3. The pattern of 6 is 6, 2, 8, 4, 0 in the unit’s place. all the multiples of 6 are even numbers. When a multiple of 2 and 3 overlap, you will get 6 multiples.

2. How do you memorize the 6 Times Table Multiplication Chart?

The best trick to remember the 6 table is to add 1 to the multiples of 5 to get the multiples of 6. You can also perform 6 times 2 means add 6 twice to get the result.

3. What is the trick for multiplying by 6?

We don’t have any special tricks for the 6 multiplication table. You just have to read it and remember. When you multiply the even number the unit digit of the result remains the same.

A fraction shows the equal parts of a collection or whole. The number line is a straight line with numbers placed at equal intervals along its length. Representing Fractions on Number Line means pointing the fractions on the number line. It shows the interval between two numbers. Learn the process of how to represent fractional numbers on a number line from the below-provided segments of this page.

Representing Fractions on Number Line – Definition

First of all, representing whole numbers on a number line means pointing those numbers on the line. In the same way, we need to point to the fraction which is between two numbers on the number line. Here, we need to divide the space between two whole numbers on a number line into the number of parts. Make each part as a fraction and then point to the respective fraction.

Examples of Fractions are \(\frac { 2 }{ 5 } \), \(\frac { 1 }{ 2 } \), \(\frac { 5 }{ 6 } \).

How to Represent Fraction on Number Line?

Are you looking for any help on representing fractions on a number line then read the following points. Here you will get the detailed step-by-step procedure.

• Get the fraction and draw a number line.
• If the numerator of the fraction is more than the denominator, then convert the fraction into a mixed fraction.
• Divide the space between two consecutive whole numbers and the denominator number of parts.
• And consider each division as a fraction.
• Now, mark the points on the number line.

Also, Read More Related Articles

• Worksheet on Fractions
• Fractions

Representing Fractions on a Number Line Examples

Example 1:

Represent \(\frac { 52 }{ 5 } \) on the number line.

Solution:

First, convert \(\frac { 52 }{ 5 } \) into the mied fraction.

\(\frac { 52 }{ 5 } \) = 10\(\frac { 2 }{ 5 } \)

Now, we start from 10 and divide the section between 10 and 11 into 5 equal parts because the denominator is 5. The second point in the division is 2/5. Mark the point as 10\(\frac { 2 }{ 5 } \).

Example 2:

Draw a number line to represent the fractions –\(\frac { 2 }{ 4 } \), \(\frac { 3 }{ 4 } \), \(\frac { 8 }{ 4 } \), \(\frac { 14 }{ 4 } \), and \(\frac { 21 }{ 4 } \).

Solution:

Given fractions are –\(\frac { 2 }{ 4 } \), \(\frac { 3 }{ 4 } \), \(\frac { 8 }{ 4 } \), \(\frac { 14 }{ 4 } \), and \(\frac { 21 }{ 4 } \)

The denominator of all the factions is 4. So, divide each interval into 4 parts. Each part so obtained will represent the fraction 1/4 and the number line obtained will be in the form of as shown here.

To mark –\(\frac { 2 }{ 4 } \); move two parts on the left-side of zero.

To mark \(\frac { 3 }{ 4 } \); count three parts from the zero.

To mark \(\frac { 8 }{ 4 } \); count 8 parts from the zero.

To mark \(\frac { 14 }{ 4 } \); count 14 parts from the zero.

To mark \(\frac { 21 }{ 4 } \), count 21 parts from the zero.

The following diagram shows markings of fractions –\(\frac { 2 }{ 4 } \), \(\frac { 3 }{ 4 } \), \(\frac { 8 }{ 4 } \), \(\frac { 14 }{ 4 } \), and \(\frac { 21 }{ 4 } \) on a number line.

Example 3:

Represent the fractions \(\frac { 1 }{ 3 } \), \(\frac { 12 }{ 3 } \), \(\frac { 16 }{ 3 } \), \(\frac { 8 }{ 3 } \) on a number line.

Solution:

The given fractions are \(\frac { 1 }{ 3 } \), \(\frac { 12 }{ 3 } \), \(\frac { 16 }{ 3 } \), \(\frac { 8 }{ 3 } \)

The denominator of all the factions is 3. So, divide each interval into 3 parts. Each part so obtained will represent the fraction 1/3 and the number line obtained will be in the form of as shown here.

To mark \(\frac { 1 }{ 3 } \), move 1 point on the right side of zero.

To mark \(\frac { 12 }{ 3 } \), move 12 pionts on the right side of zero.

To mark \(\frac { 16 }{ 3 } \), move 16 points on the right side of zero.

To mark \(\frac { 8 }{ 3 } \), move 8 points on the right side of zero.

The following diagram shows markings of fractions \(\frac { 1 }{ 3 } \), \(\frac { 12 }{ 3 } \), \(\frac { 16 }{ 3 } \), \(\frac { 8 }{ 3 } \) on a number line.

Example 4:

Represent the fractions \(\frac { 15 }{ 4 } \), \(\frac { 1 }{ 4 } \), \(\frac { -3 }{ 4 } \), \(\frac { 18 }{ 4 } \) on a number line.

Solution:

The give fractions are \(\frac { 15 }{ 4 } \), \(\frac { 1 }{ 4 } \), \(\frac { -3 }{ 4 } \), \(\frac { 18 }{ 4 } \)

The denominator of all the factions is 4. So, divide each interval into 4 parts. Each part so obtained will represent the fraction 1/4 and the number line obtained will be in the form of as shown here.

To mark –\(\frac { 3 }{ 4 } \); move three parts on the left-side of zero.

To mark \(\frac { 1 }{ 4 } \); count one part from the zero.

To mark \(\frac { 15 }{ 4 } \); count 15 parts from the zero.

To mark \(\frac { 18 }{ 4 } \), count 18 parts from the zero.

The following diagram shows markings of fractions \(\frac { 15 }{ 4 } \), \(\frac { 1 }{ 4 } \), \(\frac { -3 }{ 4 } \), \(\frac { 18 }{ 4 } \) on a number line.

FAQ’s on Representing Fractions on Number Line

1. How do you represent a fraction on a number line?

To represent fractions on the number line, divide each line segment between 0 to 1 into the denominator number of parts. And count the numerator parts from zero and mark the fractions.

2. What is \(\frac { 3}{ 4 } \) on a number line?

The fraction \(\frac { 3}{ 4 } \) means 3 out of 4 equal parts. So, count 3 parts from 0 on the number line to get \(\frac { 3}{ 4 } \).

3. What does the denominator of a fraction represent on the number line?

A fraction has two parts numerator and denominator. The denominator means how many equal parts an item was divided into.

Check Word Problems On Pythagorean Theorem in the below sections. Refer Pythagorean Theorem Study Material along with the solutions and steps to solve them. Get various model questions on Pythagoreans theorem and improve your mathematical knowledge along with other math skills. Know the shortcuts, tips, and tricks to solve Pythagorean Theorem Problems. Assess your preparation standard taking the help of the Pythagorean Theorem Questions available and cross-check your solutions here.

How to Solve Problems on Pythagorean Theorem?

Follow the simple steps listed here to solve problems related to the Pythagorean Theorem. They are along the lines

Step 1: Look at all the terms in the final equation

Step 2: Find out which right triangles contain those terms

Step 3: Start with those right triangles and apply the Pythagorean Theorem

Pythagorean Theorem Word Problems

Problem 1:

A 35-foot ladder is leaning against the side of a building and its positioned such that the base of the ladder is 21 feet from the base of the building. Find the distance above the ground where the point of the ladder touches the building?

Solution:

Let the point above the ground = x

As given in the question,

Length of the foot ladder = 35

Base of the ladder = 21 feet

Let the equation be a² + b² = c²

(21)² + (x)² = (35)²

441 + x = 1225

Subtracting by 441 on both sides

x = 784

Squaring and both sides

x = √784

x = 28

28 feet far above the ground is the point where the ladder touches the building.

Problem 2:

Lainey runs a string of lights from the ground straight up a door frame that is 2.5 meters tall. Then they run the rest of the string in a straight line to a point on the ground that is 6 meters from the base of the door frame. There are 10 lights per meter of a string. How many total lights are on the string?

Solution:

As given in the question,

The length of the lights = 2.5 meters

The base of the door frame = 6 meters

No of lights per meter = 10

To find the total number of lights on a string, we write the equation

h² = (2.5)² + (6)²

h²= 6.25 + 36

h²= 42.25

h = √42.25

String Length = 2.5 + √42.25

Therefore, no of lights = 9m * 10 lights = 90 lights

Thus, the total lights on the string = 90 lights

Problem 3:

Fencing at a hardware store costs $16.97 per yard. How much would it cost to fence in a triangular-shaped yard that has a leg of 11 feet and another leg of 60 feet?

Note: The yard is in the shape of a right triangle.

Solution:

Amount of fencing at hardware store = $16.97 per yard

Length of one leg = 11 feet

Length of another leg = 60 feet

As given the yard is in the shape of right triangle

We know the equation,

a² + b² = c²

(11)² + (60)² = c²

121 + 3600 = c²

3721 = c²

Squaring on both sides

√3721 = √c²

61 = c

The amount for a fence in a triangular-shaped yard = $61

Thus, the final solution is $61

Problem 4:

If a 34-foot ladder is placed against the top of a 30-foot building. How many feet will be at the bottom of the ladder from the bottom of the building?

Solution:

As given in the question,

Length of the ladder = 34 foot

Length of the building = 30 foot

Let the length of bottom of the ladder = x

a² + b² = c²

(30)² + x² = (34)²

900 + x² = 1156

x² = 256

Add square root on both sides

√x² = √256

x = 16 feets

Therefore, the bottom of the ladder from the bottom of the building will be 16 feets

Thus, the final solution is 16 feet

Problem 5:

A certain television is advertised as a 34-inch TV. If the width of the TV is 30 inches, how many inches tall is the TV?

Solution:

As given in the question,

Size of the TV = 34 inch

Width of the TV = 30 inch

Length of TV = x

To know the length of TV, we have to find the equation

a² + b² = c²

(30)² + x² = (34)²

900 + x² = 1156

Add square root on both sides

√x² = √1156

x = 34

TV is 34 inches tall.

Thus, the final solution is 34 inches

Problem 6:

Ramu starts driving north for 9 miles, then takes a right turn, and then he drives east for another 40 miles. At the end of driving, what is the distance of a straight line from the starting point?

Solution:

As given in the question,

Driving for north = 9 miles

Driving for east =40 miles

Let the straight line distance = x

The equation will be

a² + b² = c²

(9)² + (40)² = c²

81 + 1600 = c²

1681 = c²

Add square roots on both sides

√1681 = √c²

41 = c

Therefore, the straight line distance from the starting point is 41 miles

Thus, the final solution is 41 miles

Problem 7:

In a right-angled triangle, the hypotenuse square is equal to the sum of the squares of other two sides?

Solution:

Given: A right-angle triangle in which one of the sides is 90°

To prove: AC² = AB² + BC²

Construction: Draw BD ⊥ AC

In Δ’s ADB and ABC

∠ADB = ∠ABC (Each 90°)

∠A = ∠A (Common)

ΔADB ∼ ΔABC (By A-A Criteria)

AD/AB = AB/AC

AB² = AD * AC is the first equation

In Δ’s BDC and ABC

∠CDB = ∠ABC (Each 90°)

∠C = ∠C (Common)

ΔBDC ∼ ΔABC (By A-A Criteria)

DC/BC = BC/AC

BC² = AC * DC is the (2) equation

AB² = AD * AC is the (3) equation

Adding the equations (1) and (2)

AB² + BC² = AD * AC + AC * AD

AB² + BC² = AC (AD + DC)

AB² + BC² = AC (AC)

AB² + BC² = AC²

∴ Hence proved

Problem 8:

In the triangle, if the square of one side of the triangle is equal to the sum of the squares of another two sides of the triangle, then the angle that is opposite to the first side is a right angle triangle?

Solution:

 Given: ΔABC such that AB² + BC² = AC²

To prove: ∠B = 90°

Construction: Draw ΔDEF such that DE = AB, EF = BC and ∠E = 90°

Since ΔDEF is right-angled,

By Pythagoras theorem

DE² + EF² = DF²

AB² + BC² = DF² (By const DE = AB and EF = BC)

AC² = DF² (Given AB² + BC² = AC²)

AC = DF

To prove: ∠B = 90°

In Δs ABC and DEF

AB = DE (By const)

BC = EF (By const)

AC = DF (Proved)

ΔABC ≅ ΔDEF (SSS)

∠B = ∠E = 90°

ΔABC is a right triangle

Problem 9:

Mary wants to cut across a rectangular lot rather than walk around it. Of the lot is 120 feet long and 50 feet wide. Mary walks diagonally across the lot, how many feet is the short cut?

Solution:

As given in the question,

Length of the lot = 120 feet

Width of the lot = 50 feet

Let the shortcut distance be x

As per the Pythagorean theorem,

a² + b² = c²

(50)² + (120)² = x²

2500 + 14,400 = x²

16,900 = x²

130 = x

Therefore, Mary walks 130 feet shortcut

Thus, the final solution is 130 feet

Problem 10:

The length of a living room is 2 feet less than twice its width. If the diagonal is 2 feet more than twice the width, find the dimensions of the room?

Solution:

Let the width of the living room = x

Given that

Length of the living room = 2 feet less than twice its width

Diagonal = 2 feet more than twice the width

From the given equations,

Width represents x² + (2x – 2)² = (2x + 2)²

Length represents x² = (2x + 2)² – (2x-2)²

From both the equations,

x² = (4x + 8x + 4) – (4x – 8x + 4)

x² = 16x

(x²-16x) = 0

x(x-16) = 0

x = 0, x=16

Therefore, the width = 16

Length = (2x – 2) = 2(16) – 2 = 30

Thus, the length of the living room = 30 feet

Width = 16 feet

Hence, the final solution is l = 30 feet and w = 16 feet

Problem 11:

A man goes 12m east and 9m north. Find the distance from the initial point?

Solution:

As given in the question,

The distance man goes to east = 12m

i.e., BC = 12m

The distance man goes to north = 9m

i.e., AB = 9m

To find the initial point (AC), apply the Pythagorean theorem

AC² = AB² + BC²

AC² = (9)² + (12)²

AC² = 81 + 144

AC² = 225

AC = √225

AC = 15

Therefore, he is 15m far from his initial point

Thus, the final solution is 15m

Problem 12:

Hari wants to hang a 7m long banner from the roof of her shop. The hooks for the strings are 10m apart. Hari wants the top of the banner to hang 1m below the roof. How long should each of the strings be?

Solution:

As per the question,

Length of the long banner = 7m

Hooks for strings = 10m apart

Length where the banner to hang below the roof = 1m

Let the length of the string = x

Hence, the equation will be

7 + 2x = 10

2x = 3

x = 1.5

Now, apply the Pythagorean theorem,

C² = (1)² + (1.5)²

C² = 1 + 2.25

C² = 3.25

C = √3.25

C = 1.80

Hence, each string should be 1.80m

Thus, the final solution is 1.80m

Problem 13:

Two kids are flying a kite with a string of 50 meters long. If the kids are 35 meters apart, how high is the kite off the ground?

Solution:

As given in the question,

Length of the string = 50 meters

The distance of kids apart = 35 meters

The height of the kite off the ground = b

Applying the Pythagorean theorem, we get

a² + b² = c²

(35)² + b² = (50)²

1225 + b² = 2500

b² = 1275

b = √1275

b = 35.70

Therefore, 35.70m is the kite off the ground

Thus, the final solution is 35.70 m

Problem 14:

A carpenter needs to add 2 braces to a barn door. If the door measures 12 * 16 feet, how much wood will he need for both braces?

Solution:

As given in the question,

No of braces = 2

Length of the door = 12 feet

The breadth of the door = 16 feet

To find the amount of wood for braces, we apply Pythagorean theorem

a² + b² = c²

(12)² + (16)² = c²

144 + 256 = c²

400 = c²

c = √400

c = 20

Amount of wood for both the braces = 2 * 20 = 40ft

Therefore, the carpenter requires 40 ft of wood for both the braces.

Thus, the final solution is 40 ft

Problem 15:

M and N are points on the sides RP and RQ respectively of triangle PQR right-angled at R. Prove that PN² + QM² = PQ² + MN²?

Solution:

PN² = PR² + RN² is the (1) equation

QM² = MR² + RQ² is the (2) equation

Adding the equation (1) and (2)

PN² + QM² = MR² + RQ² + PR² + RN²

PN² + QM² = (MR² + RN²) + (RQ² + PR²)

PN² + QM² = MN² + PQ²

∴ Hence, it is proved

The modulus of a Complex Number is here. Know the example problems of modules and various forms involved in them. Follow cartesian form, trigonometric or polar form, exponential form, modulus properties, the principal value of the argument of LPA. Refer to the important topics and terminology used in complex values. Check the below sections to know the absolute value and the modulus of the complex number.

Modulus of a Complex Number – Definition

The modulus of a complex number gives you the distance of the complex numbers from the origin point in the argand plane. the conjugate of the complex number gives the reflection of that number about the real axis in the same argand plane. The modulus of the complex number is always positive which is |z| > 0. Also, the complex values have a similar module that lies on a circle.

Cartesian Form

z¡ = x + iy is the complex number that is in the cartesian form. The modulus can be represented as |z|. The value of |z| = √x² + y²

Trigonometric or Polar Form

The complex number in the polar form is represented with z. The equation of z = r cisθ or z = r∠θ, r(cosθ + isinθ) where r represents the distance of the point z from the origin or the modulus. θ is the subtended angle by z from the positive x-axis.

Here, r = √x² + y² & θ represents its argument.

Exponential Form

The complex number “z” in the form of exponential can be expressed as z = re^i∅ or |z|e^iarg(z) represents the complex number modulus and ∅ is the argument value.

Properties of Modulus

• If |z| = 0, then z = 0 + i0
• |z| = |-z| = |\(\overline{z}\)| = |iz|
• -|z| ≤ Re(z) ≤ |z|
• -|z| ≤ Im(z) ≤ |z|
• \(\overline{z}\)z = |z|², if |\(\overline{z}\)| = 1

These type of modulus are called as unimodulars

then \(\overline{z}\) = 1/z

• • |z₁z₂| = |z₁||z₂|, is true for n complex numbers
  • |zⁿ|= |z|ⁿ
  • |z₁/z₂| = |z₁|/|z₂|
  • |z₁ + z₂|² + |z₁ – z₂|² = 2(|z₁|² + |z₂|²)

Definition and Meaning of Arg

Argument or Arg in complex numbers resembles the angle which is subtended by any of the complex points on the argand plane from the +(positive) x-axis. For the complex number z, the argument is represented with arg(z) which gives us the measurement of the angle between the + (positive) x-axis and also the

For any complex number z, its argument is represented by arg(z). It gives us the measurement of the angle between the positive x-axis and the line joining origin and the point. There are three ways to express an argument of a complex number. The three ways are as follows.

General Argument

For all the complex numbers z, the general argument is z = x + iy or r(cosθ + isinθ)

Im(z) = r sinØ and Re(z) = r cosØ which shows the real and imaginary parts of the complex numbers and also are the functions of sin and cosine. Hence, they are periodic with the period 2Π which means that there exist infinite complex numbers which have the same argument or angle. The same case follows for modulus too.

Assume the complex numbers in the first quadrant (z) = x + iy (x,y >0)

The general argument will be defined as Ø = 2nΠ + tan^-1y/x where n ∈l.

Here, tan^-1y/x is known as the argument principle value and hence its value depends upon the quadrant in that point lies.

Also, Read: Properties of Complex Numbers

Prinicipal Value of Argument (PA) or Amplitude (amp)

A general argument or a well-defined complex number cannot be expressed. We used the principle value or amplitude instead of the general argument in the case where the well-defined complex function is required.

In the principle argument, Φ value is restricted to be in interval ( -Π < Φ ≤ Π) or (-Π, Π]. The range of principle argument represents the half-circled range from the +(positive) x-axis in either direction.

LPA (Least Positive Argument)

LPA is another type of argument, where the angle range Ø is kept as (0< Ø ≤ 2Π) or (0,2Π]. This type of argument has only anticlockwise rotation is considered. To find the complex number in any of the quadrants, the angle has to be calculated from the positive x-axis in the counterclockwise or anticlockwise direction only.

The native way of calculating the angle to the point (a,b) can be done by using arctan (b/a) but arctan takes the value in the range of [-Π/2, Π/2], which gives the wrong result for the negative x component coordinates. We can fix it by adding or subtracting Π and it depends on the quadrant of the Argand diagram in which the point lies in

• 1st quadrant (Θ) = arctan (b/a)
• 2nd quadrant (Θ) = arctan (b/a) + Π
• 3rd quadrant (Θ) = arctan (b/a) – Π
• 4th quadrant (Θ) = arctan (b/a)

Modulus of a Complex Number Examples

Problem 1:

If |z-(4/z)| = 2. Find the maximum value of |z|?

Solution:

As given in the question,

|z-(4/z)|

The equation is

|z-(4/z)| ≥ |z| -|4/z|

2 ≥ |z| – 4/|z|

2|z| ≥ |z|² – 4

|z|² – 2|z| – 4 ≤ 0

|z| ≤ √5 + 1

The maximum value of z,

|z| ≤ √5 + 1

Problem 2:

If z + |z| = 1 + 4i. Find the value of |z|?

Solution:

The given equation is

z= x + iy

z + |z| = 1 + 4i

x + iy + √(x² + y²) = 1 + 4i

y=4 and x + √(x² + y²) = 1

x + √(x² + 4²) = 1

√(x² + 4²) = 1-x

Squaring on both the sides, we get

x² + 4² = 1 + x² – 2x

2x = -15

or x = -15/2

|z| = √x² + y²

|z| = √(-15/2)² + 4²

|z| = √(225/4 + 16)

|z| = √(225 + 64/4

|z| = √(289/4)

|z| = 17/2

The value of |z| = 17/2

Problem 3:

For the equation, z = (3-2i)/2i. Find the complex number modulus?

Solution:

As given in the question,

z = (3-2i)/2i

z = (3)/2i – 2i/2i

z= 3/2i – 1

z= 3i/(2i)² – 1

z = -3i/2 – 1

|z| = √(-3/2)² + (-1)²

|z| = √(9/4 + 1)

|z| = √(9+4)/4

|z| = √13/4

|z| = √13/2

Therefore, the complex modules is |z| = √13/2

The division is a basic arithmetic operation and it is the inverse of multiplication. The terms of division are dividend, divisor, quotient, and remainder. The number which we divide is known as a dividend, the number by which we divide is called the divisor. The quotient means the number of times a division is completed fully, and the remainder is the quantity that doesn’t go fully into the divisor. Here, we will learn about how to estimate the quotient of two numbers easily with solved example questions.

What is Estimating the Quotient?

When we divide two numbers, the result we get is called the quotient. The formula to express the terms of division is divided ÷ divisor = quotient + remainder. It is important to know how to estimate the quotient. Estimating the quotient means, we not doing the division for the actual numbers. You need to round off the dividend and divisor to the nearest 10 and proceed for the division to get the estimated quotient value.

How to Estimate the Quotient?

Check out the step-by-step process to calculate the estimating quotient of two numbers.

• If the numbers have two or more digits, then round off the numbers to the nearest 10 or 100 or 1000.
• And divide those numbers to get the quotient.
• The obtained quotient is called the estimated quotient of the given numbers.

Also, Read More Articles:

• Division of a Decimal by a Whole Number
• Divisibility Rules from 1 to 13
• Dividend Divisor Quotient And Remainder

Example Questions on Estimating the Quotient

Example 1:

Find the estimated quotient and actual quotient when 78 divided by 36.

Solution:

Given that,

dividend = 78, divisor = 36

divided ÷ divisor = 78 ÷ 36

Actual quotient = 2

Round off the divided and divisor to the nearest 10

new divided = 80, new divisor = 40

80 ÷ 40 = 2

Estimated quotient = 2.

Example 2:

A school track is 9.76 meters wide. It is divided into 8 lanes of equal width. How wide is each lane?

Solution:

The width of each lane is nothing but the quotient when we divide 9.76 by 8.

Round off the school track to the nearest 10 i.e 9.76 is 10.

Divide 10 by 8

10 ÷ 8 = 1

Approximately, 1 meter wide each lane.

Example 3:

Aerobics classes cost $153.86 for 14 sessions. What is the estimated fee for one session?

Solution:

The fee for one session is nothing but the quotient when we divide 153.86 by 14.

Round off 153.86 to the nearest 10 i.e 150

Round off 14 to the nearest 10 i.e 10

Divide 150 by 10

150 ÷ 10 = 15

Therefore, the estimated fee for one session is $15.

Example 4:

Estimate quotient when 1058 divided by 50.

Solution:

Round off 1058 to the nearest 100 i.e 1100

Divide 1100 by 50

1100 ÷ 50 = 22

The estimated quotient is 22.

FAQs on Estimating the Quotient

1. How can you use estimation to check if a quotient is reasonable?

• Round off the divisor and dividend to the nearest 10 or 100 depending on the number of digits.
• Divide the rounded dividend by divisor to get the estimated quotient.
• Compare the estimated and exact answers to check whether the answer is reasonable or not.

2. How do you estimate the quotients?

To estimate the quotients, you need to round off each number to the nearest 10 or 100 or 100 and then divide. The result is called the estimated quotient.

3. What is a quotient?

Quotient means the answer a division problem. In the divisor parts, you divide the dividend to get the quotient.

Subsets of a Given Set mean the subset having the elements present in a set. In other words, Subsets are a part of the set. A set is nothing but a collection of elements placed within curly braces. The example of a set is {a, b, c}. If we take a set of even numbers and name it as A and set B has {2, 4, 6}, then B is the subset of set A. It is represented as B⊆A. The elements of sets may be variables, groups of real numbers, constants, or whole numbers, etc.

What is Subset of a Set?

The subset is said to be a part of the set. Subset must have the elements that present in a set. If set A is said to be a subset of Set B, then all the elements of Set A are must present in Set B. Set A is contained inside Set B.
Example: If Set A has {C, D} and set B has {C, D, E}, then A is the subset of B because all the elements of A are also present in set B. The subset is denoted by the symbol ⊆ we read as ‘subset of’. A ⊆ B; which means Set A is a subset of Set B.

All Subsets of a Set

The subset of any given set must consist of all possible sets along with the elements and also having a null set. Check out the below example to understand the subset of a set.
Example: A = {7, 6, 8, 9}
Solution: Given that A = {6, 7, 8, 9}.
Subsets = {}, {6}, {7}, {8}, {9},
{6,7}, {6,8}, {6,9}, {7,8},{7,9}, {8,9},
{6,7,8}, {7,8,9}, {6,8,9}, {6,7,9}
{6, 7, 8, 9}

Types of Subsets

Mainly, there are two different types of subsets available. they are classified as

• Proper Subset
• Improper Subsets

Proper Subset

The proper subset contains some elements of an original set along with a null set. Set A is treated to be a proper subset of Set B if Set B has at least one element that is not present in Set A. A proper subset is denoted by ⊂ and it is read as ‘is a proper subset of’. We can show a proper subset for set A and set B as A ⊂ B.

Proper Subset Formula

If we take n number of elements from a set having N number of elements, then it shows as  ^NC_n number of ways. The number of possible subsets having n number of elements from a set containing N number of elements is equal to  ^NC_n.

Also, Read:

• Different Notations in Sets
• Intersection of Sets

Improper Subset

A subset that has all elements of the original set is called an improper subset. It is denoted by ⊆. The Improper Subset consists of all elements of a set that doesn’t miss any element.

Example: Set P = {3, 5, 7}
The subsets of P are {}, {3}, {5}, {7}, {3,5}, {5,7}, {3,7} and {3,5,7}.
Where, {}, {3}, {5}, {7}, {3,5}, {5,7}, {3,7} are the proper subsets and {3,5,7} is the improper subsets. Therefore, we can write {3,5,7} ⊆ P.

Note: The empty set is an improper subset of itself but it is a proper subset of any other set.

Power Set

The power set is defined as the collection of all the subsets. It is represented by P(A).
If A is set having elements {a, b}. Then the power set of A will be
P(A) =  {∅, {a}, {b}, {a, b}}

How many Subsets and Proper Subsets does a Set have?

Let us consider a set that consists of n elements, then the number of a subset of the given set is 2ⁿ and the number of proper subsets of the given subset is given by 2ⁿ-1.

Example: If set A consists the elements, A = {c, d}, then the proper subset of the given subset are {}, {c}, {d}.
The number of elements in the set is 2.
The formula to find the number of proper subsets is 2ⁿ – 1.
= 2² – 1
= 4 – 1
= 3
Thus, the number of proper subset for the given set is 3 ({ }, {c}, {d}).

Properties of Subsets

The below are some of the important properties of subsets.

• Every set is considered as a subset of the given set itself. It means that X ⊂ X or Y ⊂ Y, etc
• Also, we can say, an empty set is considered as a subset of every set.
• A is a subset of B. It means that A is contained in B
• If a set A is a subset of set B, we can say that B is a superset of A

Solved Examples on Subsets of a Given Set

1. If A {2, 3, 7}, then write all the possible subsets of A. Find their numbers?

Solution:
Given that set A {2, 3, 7}.
Let us write all the possible subsets of a given set.
The subset of A containing no elements – {  }
The subset of A containing one element each – {2} {3} {7}
The subset of A containing two elements each – {2, 3} {2, 7} {3, 7}
The subset of A containing three elements – {2, 3, 7}
Therefore, all possible subsets of A are { }, {2}, {3}, {7}, {2, 3}, {2, 7}, {3, 7}, {2, 3, 7}
Therefore, the number of all possible subsets of A is 8 which is equal to 2³.
Proper subsets are = {  }, {2}, {3}, {7}, {2, 3}, {3, 7}

Number of proper subsets are 7 = 8 – 1 = 2³ – 1.

2. If the number of elements in a set is 4, find the number of subsets and proper subsets.

Solution:
Number of elements in a set = 4
Then, number of subsets = 2⁴ = 16
Also, the number of proper subsets = 2⁴ – 1
= 16 – 1 = 15

3. If A = {5, 6, 7, 8, 9}

The formula to calculate the number of proper subsets of a given set is 2ⁿ – 1
then the number of proper subsets = 2⁵ – 1
= 32 – 1 = 31   {Take [ 2ⁿ – 1]}
and the formula to calculate the number of subsets of a given set is 2ⁿ
power set of A = 2⁵ = 32 {Take [2ⁿ]}

A line is a one-dimensional geometric figure having length but no width. It is made up of points that are extended in opposite directions infinitely. The different types of lines are horizontal, vertical, parallel, perpendicular, curved, and slanting lines. The definitions of each type of line with an image are given below. Go through the entire article to learn in detail about the Types of Lines in Geometry and examples for each one of them.

What is a Line?

A line can be defined as the set of points that is extended in opposite directions. It has no width, no endpoints in opposite directions and it is a one-dimensional plane. The line has no thickness.

Types of Lines

There are different types of lines in geometry, the basic types of lines are listed below. Let us discuss in detail the figures, definitions, properties of each one of them. They are along the lines

• Vertical Lines
• Horizontal Lines
• Parallel Lines
• Skew Lines
• Perpendicular Lines
• Oblique or slanting lines
• Concurrent Lines
• Transversal line
• Coplanar Lines

Straight Lines:

Straight lines are the lines as shown below.

Horizontal Lines:

If the line moves from the left to the right side in a straight direction, it is called the horizontal line.

Vertical Lines:

If a line moves from the top to the bottom in a straight direction, then it is a vertical line.

Parallel Lines:

When two straight lines don’t intersect at any point, then they are parallel lines.

Perpendicular Lines:

When two straight lines meet at an angle of 90 degrees, then they are perpendicular lines.

Also, Read More Articles:

• Lines and Angles
• Parallel and Transversal Lines
• Transversal Lines
• Lines of Symmetry

Oblique or slanting lines:

If the lines are drawn in a slanting position, then they are called the oblique or slanting lines.

Skew Lines:

If two non-parallel lines are not intersecting in a space, then they are called the skew lines.

Concurrent Lines:

When two or more lines are passing through a common point, then those lines are called concurrent lines.

Transversal line:

A transversal line is a straight line that cuts 2 or more lines. The lines may or may not be parallel.

Coplanar lines:

Coplanar lines are lines that lie on the same plane.

Frequently Asked Questions on Types of Lines

1. What are the different types of lines?

The various types of lines are Horizontal Line, Vertical Line, Parallel Lines, Perpendicular Lines, Skew Lines, Oblique or slanting lines, Coplanar Lines, Concurrent Lines, and Transversal line.

2. Define a Line?

A straight line is a one-dimensional figure that has no thickness and extending infinitely from the extreme directions.

3. What is a line segment?

A line segment is a part of the line that has two fixed endpoints and it can’t be extended infinitely.

4. What are parallel and perpendicular lines?

When two straight lines extend in both directions and they don’t meet at any point is called parallel lines. Perpendicular lines intersect each other at right angles.

Class Boundaries are the data values that separate classes. These are not part of the classes or the data set. The class boundary is the middle point of the upper-class limit of one class and the lower class limit of the subsequent class. Each class has an upper and a lower class boundary. Find the definition of the class boundaries or actual class limits and example questions in the below-mentioned sections.

What is Class Boundary?

If we have different classes of data, then it has an upper-class limit and lower class limit which means the smaller and larger values. A class boundary is the midpoint of the upper-class limit of one class and the lower class limit of the subsequent class.

Lower class boundary = (lower class limit of the concerned class + upper-class limit of the previous class)/2

Upper class boundary = (upper-class limit of the concerned class + lower class limit of the subsequent class)/2

For the nonoverlapping class intervals,

The actual lower limit = lower limit – ½ x gap

The actual upper limit = upper limit + ½ x gap

Class Limit

The class limit can be defined as the minimum and maximum values contain in a class interval.

The minimum value is called the lower class limit and the maximum value is called the upper-class limit.

Solved Examples on True Class Limits

Example 1:

Find the lower, upper class boundaries?

Solution:

The class boundary of 0 – 9 is

Upper class boundary = (upper-class limit of the concerned class + lower class limit of the subsequent class)/2

= \(\frac { (9 + 10) }{ 2 } \)

= \(\frac { 19 }{ 2 } \)

Lower class boundary = (lower class limit of the concerned class + upper class limit of the previous class)/2

= \(\frac { (0 + 0) }{ 2 } \)

= 0

The class boundary of 10 – 19 is

Upper class boundary = \(\frac { (19 + 20) }{ 2 } \)

= \(\frac { 39 }{ 2 } \)

Lower Class boundary = \(\frac { (10 + 9) }{ 2 } \)

= \(\frac { 19 }{ 2 } \)

Example 2:

If the class marks of two consecutive overlapping intervals of equal size in distribution are 94 and 104 then find the corresponding intervals.

Solution:

The difference between 104 and 94 = 104 – 94 = 10

Therefore, the class intervals are (94 – \(\frac { 10 }{ 2 } \)) – (94 + \(\frac { 10 }{ 2 } \)) and (104 – \(\frac { 10 }{ 2 } \)) – (104 + \(\frac { 10 }{ 2 } \))

= (94 – 5) – (94 + 5) and (104 – 5) and (104 + 5)

= 89 – 99 and 99 – 109.

Example 3:

Find the upper, lower class boundaries?

Solution:

Lower Class Boundary of the first class interval = 44 – \(\frac { (49 – 48) }{ 2 } \)

= 44 – \(\frac { 1 }{ 2 } \)

= 44 – 0.5

= 43.5

Upper Class Boundary = 48 + \(\frac { (49 – 48) }{ 2 } \)

= 48 + \(\frac { 1 }{ 2 } \)

= 48 + 0.5

= 48.5.

FAQs on Class Boundaries

1. What is a Class Boundary?

A class boundary is the midpoint of the upper-class limit of one class and the lower class limit of the subsequent class.

2. What is the difference between class limits and class boundaries?

In the case of the class limit, the upper extreme value of the first class interval and the lower extreme value of the next class interval are not equal. However, in the class boundary, the upper extreme value of the first class interval and the lower extreme value of the next class interval are equal.

3. How to find Class Boundaries?

Follow the below-listed steps to calculate the Class Boundaries easily. They are along the lines

• Subtract the upper class limit for the first class from the lower class limit for the second class.
• Divide the result by two.
• Subtract the result from the lower class limit and add the result to the upper class limit for each class.

The angle is nothing but the figure formed by two rays. If two straight lines meet, then they form two sets of angles. The intersection forms a pair of acute angles and another pair of obtuse angles. The angle values will be based on the slopes of the intersecting lines. Check out the formula to calculate the angle between two straight lines, derivation, example questions with answers in the following sections of this page.

Angle between Two Lines – Definition

In a plane when two straight and non-parallel lines meet at a point, then it forms two opposite vertical angles. In the formed angles, one is lesser than 90 degrees and the other is greater than 90 degrees. We will find the angle between two straight and perpendicular lines is 90 degrees and parallel lines is zero degrees.

Angle between Two Straight Lines Formula and Derivation

Let us consider θ as the angle between two intersecting straight lines. And those straight lines be y = mx + c, Y = MX + C, then the angle θ is given by

tan θ = ± \(\frac { (M – m) }{ (1 + mM)} \)

Derivation

Two straight lines L₁, L₂ are intersecting each other to form acute and obtuse angles.

Let us take the slope measurement can be taken as

tan θ₁ = m₁ and tan θ₂ = m₂

From the figure, we can say that θ = θ₂ – θ₁

Now, tan θ = tan(θ₂ – θ₁)

tan θ = \(\frac { (tan θ₂ – tan θ₁) }{ (1 + tan θ₁ tan θ₂) } \)

Substitute tan θ₁ = m₁, tan θ₂ = m₂

tan θ = \(\frac { (m₂ – m₁) }{ (1 + m₁ m₂) } \)

How to find Angle Between Two Straight Lines?

If three points on a coordinate plane are given, then endpoints of a line are (x₁, y₁) and (x₂, y₂)

The equation of the slope is m = \(\frac { (y₂ – y₁) }{ (x₂ – x₁) } \)

m₁ and m₂ can be calculated by substituting in the formula, then the angle between two lines is given by

tan θ = ± \(\frac { m₂ – m₁) }{ (1 + m₁ m₂) } \)

Also Check:

• Pairs of Angles
• Angle of Elevation
• Angle of Depression

Angle between Two Straight Lines Examples

Example 1:

If A (-2, 1), B (2, 3), and C (-2, -4) are three points, find the angle between two straight lines AB, BC.

Solution:

Given that,

Three points are A (-2, 1), B (2, 3), and C (-2, -4)

The slope of line AB is m = \(\frac { (y₂ – y₁) }{ (x₂ – x₁) } \)

m = \(\frac { (3 – 1) }{ (2 – (-2)) } \)

= \(\frac { (2) }{ (2 + 2) } \)

= \(\frac { 2 }{ 4 } \)

= \(\frac { 1 }{ 2 } \)

Therefore, m₁ = \(\frac { 1 }{ 2 } \)

The slope of line BC is given by

m = \(\frac { (y₂ – y₁) }{ (x₂ – x₁) } \)

m = \(\frac { (-4 – 3) }{ (-2 – 2) } \)

= \(\frac { -7 }{ -4 } \)

= \(\frac { 7 }{ 4 } \)

Therefore, m₂ = \(\frac { 7 }{ 4 } \)

Substituting the values of m2 and m1 in the formula for the angle between two lines when we know the slopes of two sides, we have,

tan θ = ± \(\frac { (m₂ – m₁) }{ (1 + m₁ m₂) } \)

= ± \(\frac { (\frac { 7 }{ 4 } – \frac { 1 }{ 2 } ) }{ (1 + \frac { 1 }{ 2 }  * \frac { 7 }{ 4 }) } \)

= ± \(\frac { 2 }{ 3 } \)

Therefore,  θ = tan ^-1 (⅔)

So, the angle between the lines AB, BC is tan ^-1 (⅔).

Example 2:

Find the angle between the following lines 4x – 3y = 8, 2x + 5y = 4.

Solution:

Given two straight lines are 4x – 3y = 8, 2x + 5y = 4

Converting the given lines into slope intercept form

4x – 3y = 8

4x = 8 + 3y

3y = 4x – 8

y = \(\frac { 4x – 8 }{ 3 } \)

y = \(\frac { 4x }{ 3 } – \frac { 8 }{ 3 } \)

Therefore, the slope of line 4x – 3y = 8 is \(\frac { 4 }{ 3 } \)

2x + 5y = 4

5y = 4 – 2x

y = \(\frac { 4 – 2x }{ 5 } \)

y = \(\frac { -2x }{ 5 } + \frac { 4 }{ 5 } \)

Therefore, the slope of the line 2x + 5y = 4 is –\(\frac { 2 }{ 5 } \)

The angle between lines is tan θ = ± \(\frac { (m₂ – m₁) }{ (1 + m₁ m₂) } \)

= ± \(\frac { (\frac { -2 }{ 5 } – \frac { 4 }{ 3 } ) }{ (1 + \frac { 4 }{ 3 }  * \frac { (-2) }{ 5 }) } \)

= \(\frac { -26 }{ 7 } \)

θ = tan ^-1 (\(\frac { -26 }{ 7 } \))

Example 3:

Find the angle between two lines x + y = 4, x + 2y = 3.

Solution:

The given two lines are x + y = 4, x + 2y = 3.

The slope-intercept form of the first line is

x + y = 4

y = 4 – x

Therefore, slope of x + y = 4 is m₁ = -1

The slope-intercept form of the second line is

x + 2y = 3

2y = 3 – x

y = \(\frac { (3 – x) }{ 2 } \)

y = \(\frac { 3 }{ 2 } – \frac { x }{ 2 } \)

Therefore, slope of x + 2y = 3 is m₂ = \(\frac { -1 }{ 2 } \)

The angle between lines is tan θ = ± \(\frac { (m₂ – m₁) }{ (1 + m₁ m₂) } \)

= ± \(\frac { (\frac { -1 }{ 2 } – (-1) ) }{ (1 + \frac { -1 }{ 2 }  * (-1)) } \)

= \(\frac { 1 }{ 3 } \)

θ = tan^-1(\(\frac { 1 }{ 3 } \))

Example 4:

Find the angle between two straight lines x + 2y – 1 = 0 and 3x – 2y + 5 = 0

Solution:

The given lines are x + 2y – 1 = 0 and 3x – 2y + 5 = 0

The slope intercept form of first line is

x + 2y – 1 = 0

2y = 1 – x

y = \(\frac { 1 – x }{ 2 } \)

y = \(\frac { 1 }{ 2 } – \frac { x }{ 2 } \)

Therefore, the slope of line x + 2y – 1 = 0 is m₁ = \(\frac { -1 }{ 2 } \)

The slope-intercept form of the second line is

3x – 2y + 5 = 0

3x + 5 = 2y

y = \(\frac { 3x + 5 }{ 2 } \)

y = \(\frac { 3x }{ 2 } + \frac { 5 }{ 2 } \)

Therefore, the slope of line 3x – 2y + 5 = 0 is m₂ = \(\frac { 3 }{ 2 } \)

The angle between lines is tan θ = ± \(\frac { (m₂ – m₁) }{ (1 + m₁ m₂) } \)

= ± \(\frac { (\frac { 3 }{ 2 } – \frac { (-1 }{ 2 )} ) }{ (1 – \frac { 1 }{ 2 }  * \frac { (3) }{ 2 }) } \)

= 2

θ = tan^-1(2)

The transverse and conjugate axis of the hyperbola is here. Check the definition of the transverse and conjugate axis. Refer to Standard forms of the hyperbola with the center, vertices, and foci. Learn How to find the Length of Transverse and Conjugate Axes of a Hyperbola. Know the procedure to solve hyperbola problems along with solutions.

Hyperbola – Definition

The hyperbola is a set of all the points in such a way that the difference of distance between any of the points on the hyperbola to the fixed points is always constant. The fixed points of the hyperbola are called the “foci of hyperbola”. The hyperbola graph is not continuous i.e., every hyperbola has two distinct points or branches. The transverse axis is nothing but the line segment where both endpoints of the hyperbola are on it.

The transverse axis endpoints are known as vertices of the hyperbola. “Center” is the point halfway between the foci which is the midpoint of the traverse axis. The transverse axis of hyperbola x² / a² – y² / b² = 1 is along the x-axis and the length of a hyperbola is 2a.

Important Formulae and Terms of Hyperbola

There are a few terms related to hyperbola which has to be understood to get perfection in this concept. The important terms used in hyperbola are:

• Eccentricity: 1 + [(transverse axis)² + (conjugate axis)²]
• Directrix: x = (-a/e), x = (a/e)
• Focii: S’ = (-ae,0), S = (ae,0)
• Conjugate Axis: The line segment of length 2b, between 2 points B’ = (0,-b) & B = (0,b) is called hyperbola conjugate axis.
• Transverse Axis: The line segment of the length 2a in which focii ” S’ ” and “S” lie is called the hyperbola transverse axis.
• Principle Axis: The conjugate and transverse axis both combinedly called a principle axis.
• Vertices: A’ = (-a, 0) & A = (a, 0)
• Double Ordinate: The chord that is perpendicular to the transverse axis is known as double ordinate.
• Focal Chord: A chord that passes through a focus is known as a focal chord.
• Latus Rectum: The focal chord which is perpendicular to the transverse axis is called the latus rectum.

The length of latus rectum = [(conjugate)² / transverse] = (2b² / a) = 2a (e² – 1)

The difference of the focal distances is the constant value

i.e., |PS-PS’| = 2a

Length of latus rectum = 2e * (the distance of the focus from the corresponding directrix)

Endpoints of Latus Rectum: (± ae, ± b2 / a)

Centre: The point at which bisects every chord of the conic which is drawn through it and is called the center of the conic.

C: (0, 0) is the centre of [(x²/a²) – (y²/b²)] = 1

Key Points about Transverse and Conjugate Axis of the Hyperbola

• • Any point present on the conjugate hyperbola will be in the form (a tan θ, b sec θ).
  • The equation of the hyperbola conjugate to xy = c² is xy = -c²
  • Conjugate Hyperbola + Hyperbola = 2 (Pair of Asymptotes).
  • The point where a pair of the diameter of conjugates meets a hyperbola and the form of the conjugates of a parallelogram, where vertices lie on asymptotes and the area is constant.
  • The equation of asymptotes and hyperbola differ by the similar constant by which the asymptotes equations and conjugate hyperbola differ.
  • If a pair of diameters of hyperbola conjugate meet the hyperbola and its conjugate in T, T’ and R, R’ respectively. Then the asymptotes bisect TR and TR’.
  • If e1 and e2 are the hyperbola eccentricities and its conjugate then the equation is e₁^-2 + e₂^-2 = 1
  •  Two hyperbolas with similar eccentricity are said to be similar.
  • The focus of conjugate and hyperbola are concyclic and they form the square vertices.

Standard Forms of Hyperbola Equation with Center (0,0)

The standard form of hyperbola equation with center (0,0) and the transverse axis on x-axis is x² / a² – y² / b² = 1

where,

• the transverse axis length is 2a
• the vertices coordinates are (±a,0)
• the conjugate axis length is 2b
• the co-vertices coordinates are (0, ±b)
• the distance between foci is 2c, where c²=a² + b²
• the foci coordinates are (±c,0)
• the asymptotes equation is y = ±b/a x

The standard form of hyperbola equation with center (0,0) and the transverse axis on y-axis is y² / a² – x² / b² = 1

where,

• the transverse axis length is 2a
• the vertices coordinates are (0,±a)
• the conjugate axis length is 2b
• the co-vertices coordinates are (±b,0)
• the distance between foci is 2c, where c²=a² + b²
• the foci coordinates are (0,±c)
• the asymptotes equation is y = ±a/b x

Standard Forms of Hyperbola Equation with Vertices and Foci

• • First of all, determine if the transverse axis lies on the x-axis or y-axis. Check that a² is under the variable with +(positive) coefficient. Therefore, if you set another variable equal to zero (0), you can find the intercepts easily. The point at which the intercepts of hyperbola coincide with vertices, it is centered as an origin.
  • If the equation is of the form x² / a² – y² / b² = 1, then the axis of the transverse line lies on the x-axis. The vertices are pointed at (±a,0) and foci are pointed at (±c,0).
  • If the equation is of the form y² / a² – x² / b² = 1, then the axis of the transverse line lies on the y-axis. The vertices are pointed at (0,±a) and the foci are pointed at (0,±c)
  • Solve the value for a, by using the equation a = √a²
  • Solve the value for c, using the equation c = √a² + b²

Transverse and Conjugate Axes of Hyperbola Examples

Problem 1:

Find the lengths of conjugate and transverse axis of the hyperbola 16x² – 9y² = 144?

Solution:

The given equation of the hyperbola is 16x² – 9y² = 144

x²/9 – y²/16 = 1 is the (1) equation

The above equation (1) is of the form x² / a² – y² / b² = 1, where a² = 9 and b²=16

Therefore, the length of the transverse axis is 2a, which can be written as 2*3 = 6 and the length of the conjugate axis is 2b, which can be written as 2*4 = 8

Problem 2:

Find the lengths of conjugate and transverse axis of the hyperbola 3x² – 6y² = -18?

Solution:

The given equation of the hyperbola is 3x² – 6y² = -18

The hyperbola equation can be written as x²/6 – y²/3 = 1 is the (1) equation

The above equation (1) is of the form x² / a² – y² / b² = -1, where a² = 6 and b²=3

Hence, the length of the transverse axis is equal to 2b which is 2 * √3 = 2√3 and the length of the conjugate axis is equal to 2a which is 2 * √6 = 2√6

Problem 3:

Find the hyperbola eccentricity whose latus rectum is half of the transverse axis?

Solution:

Let the equation of the hyperbola be x² / a² – y² / b² = 1

Transverse axis = 2a and lactus-rectum = (2b²/a)

According to the question, (2b²/a) = (1/2) * 2a

2b²=a (Since, b²=a²(e²-1))

2a²(e²-1) = a²

2e²-2 = 1

e²=(3/2)

e = √(3/2)

Therefore, hyperbola eccentricity is √(3/2).

Thus, the final solution is √(3/2).

The interesting topic of mathematics is Time. Measurement of the time requires some specifications and units. Know the different units of time and various circumstances it is used in. Follow the terminology used in time and know the solved examples involving time. Check the below sections to know the details like units of time conversion chart, mathematical conversions, terminology, formulae, etc.

How to Convert Units of Time?

To convert a unit of time, we can use the factor of conversions. The conversion for a unit of time can be done by using division or multiplication. With the help of the conversion factor, simplification will be easier. The most used equation while converting units of time is

S * C = E

where S is considered as the starting value, C is considered as the conversion factor and E is desired as the converted solution.

Time – Definition

Time is considered as the continuous existence progress in the past, present, and also future. With the help of the unit of time, one can easily measure the existence of the event present. The most commonly used time units are:

• Hour
• Minute
• Second

Popular Time Measurement Units

The most commonly used units of time include hour, minute, week, day, year, and month. In consideration of long durations of time, year multiples are also used for a certain time frame. A decade is equal to 10 years, the century is equal to 100 years, the millennium is equal to 1,000 years and a mega-annum is equal to 1,000,000 years.

Units of Time

How to Convert Units of Time?

Follow the simple steps to change between one unit of time to another. They are in the following fashion

Step 1: In the first step, identify the units that are used in the problem.

Step 2: Find and determine the relationship between the given units.

Step 3: Check and determine the fraction form (the conversion factor). The denominator value must have the same unit as the given original measurement.

Step 4: Multiply the given original measurement with the conversion factor.

Time Unit Conversion Table

Relationship Between Units of Time

Also, Check:

• Units of Length Conversion Charts
• Units of Mass and Weight Conversion Chart
• Math Conversion Chart

How to Solve Unit Conversion Problems?

Step 1: Read the problem carefully and write down any key points

Step 2: Highlight or underline the main question

Step 3: Make a plan, write out exactly what needs to be done in order to obtain the solution.

Step 4: Proceed by using the mathematical operations necessary as described in Step 3

Step 5: Check your answer

Time Measurement Examples

Problem 1:

Convert 4 hours into seconds?

Solution:

As we have to convert 4 hours into seconds, first convert 4 hours into minutes and then to seconds

“Hours into Minutes”

To convert hours into minutes, multiply with 60

Therefore 4 hours = 4 * 60 = 240 minutes

“Minutes into Seconds”

To convert minutes into seconds, multiply with 60

Therefore, 240 minutes = 240 * 60 = 14400 seconds

Thus, 4 hours in seconds = 14400 seconds

Problem 2:

Convert 3 hours 10 minutes into seconds?

Solution:

As we have to convert 3 hours 10 minutes into seconds, first convert 3 hours into minutes and then add that to 10 minutes and later convert that to seconds

“Hours to Minutes”

To convert hours into minutes, multiply with 60

Therefore 3 hours = 3 * 60 = 180 minutes

Now, add 180 minutes to 10 minutes

Thus, minutes = 190 minutes

“Minutes into Seconds”

1 min = 60 seconds

Therefore, 190 * 60 = 11,400 seconds

Thus, 3 hours 10 mins = 11,400 seconds

Problem 3:

Calgrand’s juice can produce 500 gallons of apple juice in quart-sized containers for $750. If they can sell the apple juice for $3.25 per quart, how much will they earn by selling all 500 gallons?

Solution:

As given in the question,

Amount of apple juice = 500 gallons

Amount of quart-sized containers = $750

Amount of juice per quart = $3.25

Let x be the no of quarts sold

Profits = Revenue – Cost

$3.25 * x

500 gallons * (4 quarts/ 1 gallon) = 2000 quarts

2000 * 3.25 = 650000

$6500 – $750 = $5750

Amount of money they earn by selling all 500 gallons = $5750

Therefore, the final amount of money they earn = $5750

Problem 4:

John went on vacation and left her dog at a kennel. The kennel charges $13 per hour. If John left his dog there for $9.25 days, how much was his bill?

Solution:

As given in the question,

Amount of kennel per hour = $13

No of days = $9.25

To convert the days into hours, multiply it with 24

9.25 * 24hours/1day = 22200

To find the amount of bill = x * cost per hour

222 * 13 = 2886

Therefore, John bill was $2886

Problem 5:

A top drug company has just invented a new colon drug. They can produce 1 millimeter for $7.35. How much will it cost them to produce 2 kilolitres of this colon drug?

Solution:

As given in the question,

Amount to invent a new colon drug = $7.35

To produce 2 kilolitres of the colon drug

2 kilolitres = 2,000,000 millilitres

For 1 millimeter = 7.35 * 2,000,000 = 1470000000

Therefore, it will cost $14.7 to produce 2 kilolitres of the colon drug.

Thus, the final solution is $14.7

Division of a decimal by a whole number examples are here. Know the steps to divide all the decimal values to whole numbers. Also, know the formulae and tricks to solve division problems. Check solved examples of decimals division by a whole number. In the below sections, we have mentioned the complete details regarding formulae, step-by-step procedure, tricks, and examples.

Division of a Decimal by a Whole Number

Before going to check how to divide a decimal by a whole number, know how to convert the decimal value into a whole number. If you convert the decimal value into a whole number, then the division rule can be easily applied to it. The division is the most challenging part of all the operations present in mathematics.

It is challenging because, to divide the values, you also have to use operations like multiplication, subtraction, addition etc. With the help of the divisions, you get perfect in estimations and rounding the values. Dividing the decimal values is almost the same as dividing the whole numbers. Here, you just have to use the decimal point value in the dividend to determine the decimal value places in the final solution.

How to Divide Decimal Numbers?

Rules for Division of a Decimal Value by a Whole Number

• We have to use the long division or division of decimals by the whole number, ignoring the decimal points. We have to treat the decimal values as whole numbers and then divide the values.
• In the final answer (quotient), we have to place the decimal value point in the same place where the number that is divided exactly has. Hence, we get the appropriate solution when decimal values are divided by whole numbers.

How to Divide a Decimal Value by a Whole Number?

1. Write the division equation in the standard form. Divide the part of the whole number of the decimal value by the divisor.
2. Now, place the decimal value point in the quotient above the decimal point which is present in the dividend. You have to bring the tenths digits down.
3. In the case that tenths digits are not divisible by the divisor, you have to add 0 in the quotient also in front of the digit in the tenths place.
4. Now, the divisor has to be divided by the dividend.
5. Add zeros in the dividend until you get the remainder as 0.

Dividing a Decimal by One Digit Whole Number

To divide a decimal by a one-digit whole number, you have to follow a few steps:

• Divide the value as you normally do. You can do it normally as there is no decimal value in the number.
• While bringing the digit down which comes after the decimal point, you have to place the decimal value in the quotient.

Dividing a Decimal by Two Digit Whole Number

To divide a decimal by a two-digit whole number, you have to follow a few steps:

• As there is no decimal point in the given number you have to divide the number normally.
• While bringing the first digit on the right side of the decimal value point down, you have to place the decimal value in the quotient.

Also, Read:

• Division of Integers
• Properties of Division of Integers
• Examples on Division of Integers

How to do Long Division with Decimal Values?

1. First of all, check if the number has a decimal value, if it has the decimal value, move that decimal value point to the right by counting the number of place values you have moved it to.
2. Once, you have done with the decimal value, move that point in the number you are dividing with the same place number to the right.
3. Insert the decimal value point in the quotient space, present exactly above the decimal value point in the number below the division bar.
4. Divide the value until you get the remainder as zero or till you have enough decimal places in the solution or quotient. There is also another case where the remainder repeats indicating the answer is the repeating decimal.

Dividing Decimals by Whole Numbers Examples

Question 1:

Divide the decimal value 360.57 by 51?

Solution:

To divide the decimal value 360.57, first divide 360 by 51

When dividing 360/51, we get the quotient as 7

Now, multiply 51 with 7, which results in 357

Then, subtract the result 357 from 360, the remainder is 3

As, 3 is the remainder, now go for the division of decimal value by 51

Now, bring down the value 5, as it follows the decimal point, place the decimal point in the quotient.

We continue it and divide 35 by 51. As 35 is less than 51, add 0 in the quotient and bring down the succeeding number “7”

Now, divide 357/51 which results as 7

35-357 = 0

Hence, the division is done and the solution is 7.07

Therefore, the final solution of dividing 360.57 by 51 is 7.07

Question 2:

Divide the decimal value 47.5 by 5?

Solution:

To divide the decimal value 47.5, first divide 47 by 5

When dividing 47/51, we get the quotient as 9

Now, multiply 9 with 5, which results in 45

Then, subtract the result 47 from 45, the remainder is 2

As, 2 is the remainder, now go for the division of decimal value by 47

Now, bring down the value 2, as it follows the decimal point, place the decimal point in the quotient.

We continue it and divide 25 by 5, the result will be 5

Subtract the value 25 from 25 then the final remainder will be 0.

Hence, the division is done and the solution is 9.5

Therefore, the final solution of dividing 47.5 by 5 is 9.5

Follow the table of sines and cosines here. Check the calculators and tables for trigonometric functions like sines and cosines. Refer to trigonometry ratio tables and also tricks to remember the trigonometry table. Know the various steps involved in preparing the trigonometry table and the determination of values to it. Check the below sections to know the various details regarding sine and cosine tables and calculations.

Table of Sines and Cosines

Trigonometry is the most important concept in mathematics which involves the lengths and areas of a triangle. These are mostly associated with right-angle triangles where one of those angles is 90 degrees. Trigonometry has a huge number of applications in various fields of Mathematics. Geometric Calculations can easily be figured out using trigonometric values, formulas, and functions as well. In the below sections, we are providing the trigonometric ratios table which helps to find the trigonometric standard angle values like 0°, 30°, 45°, 60°, and 90°, etc.

Various trigonometric ratios like sine, cosine, tan, secant, cotangent are present. In short, these ratios can be defined as cosec, sec, sin, cos, tan, cot. With the help of these ratios, trigonometric problems can easily be solved and you can calculate various mathematical derivations. Hence, it is necessary for you to learn and remember the trigonometric values of the standard angles.

The trigonometric ratio tables are mostly used to calculate the number of areas. In today’s world, trigonometry is used for science, navigation, and engineering. The ratio tables were effectively used in the era of pre-digital, where the pocket calculators were not available. The most essential application of trigonometric ratio tables is FFT(Fast Fourier Transform) algorithms.

Trigonometric Ratios Table

Tips and Tricks to Remember Trigonometric Table

Remembering the trigonometric table is a tough task for the students. But, if you follow a few tips and tricks, you can easily remember it. If you remember the table, you can easily solve many questions. The first step you have to do to remember the table is to get perfection in trigonometric formulae. The ratio table completely depends on the trigonometric formulae. We are providing a few steps to remember the trigonometric table.

Before, knowing the tricks to remember a table, look at the important formulae which helps you to prepare a table.

• cot x = tan (90° – x)
• cosec x = sec (90° – x)
• sin x = cos (90° – x)
• 1/cos x = sec x
• tan x = cot (90° – x)
• cos x = sin (90° – x)
• sec x = cosec (90° – x)
• 1/sin x = cosec x
• 1/tan x = cot x

Also, read:

• Worksheet on Trigonometric Identities
• Trigonometrical Ratios Table
• Trigonometrical Ratios of 90 Degree Minus Theta

How to Create a Trigonometry Table

Step 1:

Starting creating a table with angles on the top row listing. The angles must be 0°, 30°, 45°, 60°, 90°, 180°, 270°, 360°. Once you include all the angles as columns, now include all the trigonometric functions as rows. Include functions like sin, cos, tan, cosec, sec, cot, etc.

Step 2: 

In this step, we have to determine the values of sin, we have to divide the values of 0,1,2,3,4 by 4, and next we have to take the square root. For suppose, if you have to find the value of 0°, we have to write √(0/4) which results as 0. Now, find the value of 30°, we have to write √(1/4) which results as 1/2. Now, find the value of 45°, we have to write √(2/4) which results in 1/√2. In the same way, we have to find the values of the remaining angles. Hence the final table values of sin will be as follows.

Step 3:

In the next step, we have to determine the values of cos for all the required angles. The cos values are the opposite of the sin values which means that the value of sin(0-x) is similar to the value of cos(90-x). To find the value of cosine divide the values with 4 in the opposite order of sin i.e., 4, 3, 2, 1, 0 by 4 and take the square root.

For suppose, to find the value of 0°, we have to write √(4/4) results as 1. To find the value of 30°, we have to write it as (√3/4) results as √3/2. To find the value of 45°, we have to write as (√2/4) results as 1/√2. In the same way, we have to find the values of the remaining angles. Hence the final table values of cos will be as follows.

Step 4:

Now, determine the values of a tangent for all the required angles. The formula to find the tangent values is tan x = sin x/cos x. To find the value of tan, use the formulae mentioned above. To find the value of tan 0°, use the values of sin and cos, i.e., we have to use the formula tan 0° = sin 0°/cos 0° which is 0/1 and results in 0. To find the value of 30°, tan 30° = sin 30°/cos 30° which is (1/2) / (√3/2), results in 1/√3. In the same way, find the values of the remaining angles. Hence the final values will of tan will be as follows.

Step 5:

In Step 5, we have to determine the value of the cot. The cot values are the opposite of the tan values which means that the value of tan(0-x) is similar to the value of cot(90-x). To find the value of cot, we have to take the value as 1/tan. To find the value of 0°, use the value of 1/tan 0° which is 1/0 = ∞. To find the value of tan 30°, use the value as 1/tan 30° which is 1/(1/√3) = √3. In the same way, find the values of the remaining angles. Hence the final values will of the cot will be as follows.

 Step 6:

In the next step, we have to determine the value of cosecant. The cos values are the inverse of the sin values. To find the value of cos, we have to take the value as 1/sin. To find the value of 0°, use the value of 1/sin 0° which is 1/0 = ∞. To find the value of cos 30°, use the value as 1/sin 30° which is 1/(1/2) = 2. In the same way, find the values of the remaining angles. Hence the final values will of cos will be as follows.

Step 7:

In the last step, we determine the value of the secant. The sec values are the inverse of the cos values. To find the value of sec, we have to take the value as 1/cos. To find the value of 0°, use the value of cos 0°, 1/cos 0° which is 1/1 = 1. To find the value of cos 30°, use the value as 1/cos 30° which is 1/1/√3 = √2. In the same way, find the values of the remaining angles. Hence the final values will of sec will be as follows.

FAQs on Table of Sines and Cosines

1. What is Trigonometry?

Trigonometry is the mathematics branch which deals with angles and sides of the triangle.

2. What are the Trigonometric Functions and their Types?

Trigonometric functions are defined for the functions of the right-angled triangle. There are 6 basic trigonometric function types. They are:

1. Sin function
2. Cos function
3. Tan function
4. Cot function
5. Sec function
6. Cosec function

3. Find out the Values of the Trigonometric Functions?

There are various values of all the trigonometric functions

• Cosec = 1/Sin = Hypotenuse/Opposite
• Sec = 1/Cos = Hypotenuse/Adjacent
• Sin = Opposite/Hypotenuse
• Cos = Adjacent/Hypotenuse
• Tan = Opposite/Adjacent
• Cot = 1/Tan = Adjacent/Opposite

Multiplication Table of 25 helps students to learn the multiples of 25 with 1 to 20 whole numbers. Math Tables can make your confidence to the next level in solving long math calculations. So, try learning and remembering the 25 times table with the help of this article and do math problems quicker. In this guide of 25 times table, we will learn & understand how to read and write multiplication table of 25. Also, you can observe some tips and hints to remember the table of twenty-five along with worked-out examples.

25 Times Table Multiplication Chart | Table of 25 Chart

The 25 Times Table Chart is provided below in an image format for quick reference. Students who feel hard to learn and memorize the twenty-five times table can refer to the picture over here and do calculations at a faster pace. Also, you can download this Multiplication chart of 25 for free of cost and paste the printout on your walls and try to recite the table of 25 for better memorization.

Learn Writing Multiplication Table of Twenty-Five | 25 Times Up to 20

Reading the multiplication table of 25 is an important skill that students should have for solving the long divisions and multiplications problems. The table of 25 is easily understandable by the students as it is an equal group of 25. It will make problem-solving faster. Also, by recognizing the patterns of the multiples of 25 aids to use them in daily life situations. So, check out the given below table of 25 times multiplication and memorize it for a long run.

How to Read Twenty-five Times Multiplication in Words?

One time twenty-five is 25

Two times twenty-five is 50

Three times twenty-five is 75

Four times twenty-five is 100

Five times twenty-five is 125

Six times twenty-five is 150

Seven times twenty-five is 175

Eight times twenty-five is 200

Nine times twenty-five is 225

Ten times twenty-five is 250

Tips & Tricks to Memorize 25 Times Table

Below listed tips & tricks helps students to learn the Twenty-five Multiplication Table easily and do fast calculations mentally. They are as follows

• 25 table is very easy to remember by seeing the multiples of 25 because the digit at the unit’s place is always 0 or 5. Check the image below and try to memorize the table of 25.

• Add 25 to the first multiple and get the next multiple of 25. Repeat the process until you reach the required whole number.

Get More Math Tables:

Worked-out Examples on Multiplication Table of Twenty-Five

1. Apply 25 times table and solve 25 times 3 minus 8 plus 15?

Solution:

First, express the given statement in mathematical form ie., 25 times 3 minus 8 plus 15 = 25 x 3 – 8 + 9

Use the table of 25, and get the value for 25 x 3 – 8 + 9

= 75 – 8 + 9

= 67 + 9

= 76

Therefore, 25 times 3 minus 8 plus 15 is 76.

2. Rohan prepares 25 cookies per day. Using 25 times table explain how many has he made in the first week of May month?

Solution:

May has 31 days. First week of may means 7 days

Per day rohan makes 25 cookies

So, per week rohan makes 25 x 7 = 175

Hence, Rohan has made 175 cookies.

Students do you know that the number 22 is a palindrome number? Also, learn more about the 22 Times Table from this guide. In this article, you guys will find various options to learn and memorize the table of 22. So, refer to this page and collect all the information that you look for. Remembering the Math Tables from 0 to 25 are very necessary at the time of primary classes. So, we have curated the tips and tricks to memorize the Twenty-Two Times Table here along with worked-out examples.

22 Times Table Multiplication Chart

Here, we will find the multiplication chart of 22 in an image format to download and memorize daily. This 22 times table image can be helpful for further reference. So, download the Printable Table of 22 Image and paste it on your walls to remember regularly and solve the mathematical problems easily and quickly.

How to Learn Writing Multiplication Table of 22 | Twenty-Two Times Table Up to 20

Learning and memorizing the Math Multiplication Table of 22 is a crucial skill for long multiplication and division because:

• It aids in working the mental math calculations.
• You can solve all math problems with speed and accuracy.
• Also, this table of 22 times multiplication helps in grasping the pattern of multiples.

So, check out the below-tabulated Multiplication Table of Twenty-Two and enhance your problem-solving skills for fast calculations.

How to Read Twenty-Two Times Multiplication?

One time twenty-two is 22

Two times twenty-two are 44

Three times twenty-two are 66

Four times twenty-two are 88

Five times twenty-two are 110

Six times twenty-two are 132

Seven times twenty-two are 154

Eight times twenty-two are 176

Nine times twenty-two are 198

Ten times twenty-two are 220

Get More Math Tables:

Tips & Tricks for Multiplication Table of Twenty-Two

Here, we have shared some of the tips & tricks that help students to learn and memorize the twenty-two times table easily and solve the math problems quickly.

• Firstly, students have to remember the 2 times table. Take the first ten multiples of 2 ie., 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20.
• Always the digits we multiply with are whole numbers. The digit in one’s place is an even number gained by multiplying 2 with the whole number and then do a summation of both.
• Now, we can find the multiples of 22 with the desired whole number by multiplying the number by 2 at first. After 5 whole numbers, we have to add up the products. For instance, 22 times 7 = (2 times 7) + (2 times 7) = 14 + 14 = (14+1)4 = 154, and so on.

Worked-Out Examples Involving 22 Multiplication Table

1. Using the table of 22, Find the result for the following expression 22 times 5 minus 3 times 22?

Solution:

First, consider the given statement 22 times 5 minus 3 times 22 mathematically,

22 times 5 minus 3 times 22 = 22 x 5 – 3 x 22

Use the table of 22 and solve this expression ie., 22 = 22 x 5 – 3 x 22

= 110 – 66  = 44

Therefore, 22 times 5 minus 3 times 22 is 44.

2. Use the 22 times table, and evaluate the value of 6 plus 22 times 5 minus 9.

Solution:

First, we will write 6 plus 22 times 5 minus 9 mathematically.

ie., 6 plus 22 times 5 minus 9 = 6 + 22 x 5 – 9

By using the 22 times table, solve the result for the expression ie., 6 + 22 x 5 – 9

= 6 + 110 – 9

= 116 – 9

= 107

Hence, 6 plus 22 times 5 minus 9 is 107.