# Sets solutions class 11 chapter 1 exercise 1.2 NCERT

NCERT mathematics class 11 Chapter 1 Sets Exercise 1.2 solutions are given.

You should study the textbook lesson Sets very well.

You should also observe and practice all example problems and solutions are given in the textbook.

Observe the given below solutions and try them in your own method.

NCERT Solutions for maths class 11 for some chapters

CBSE class 11 maths solutions

Sets

Exercise 1.1

Exercise 1.2

Exercise 1.3

Exercise 1.4

## Sets exercise 1.2 solutions class 11 NCERT

Class 11 maths NCERT solutions

Chapter 1

Sets

Exercise 1.2

11th maths NCERT solutions exercise 1.2 problem 1

Which of the following are examples of the null set.

i. Set of odd natural numbers divisible by 2.

ii. Set of even prime numbers.

iii.{ x : x is a natural number x < 5 and x < 7}

iv { y : y is a point to commonto ant two parallel lines}

11th maths NCERT solutions exercise 1.2 problem 2
Which of the following sets are finite are infinite

i. The set of months in a year

ii. {1, 2, 3 …. }

iii. {1, 2, 3 …. , 99, 100}

iv. The set of positive integers greater than 100.

v. The set of prime numbers less than 99.

11th maths NCERT solutions exercise 1.2 problem 3
State whether each of the following set is finite  infinite.

i. The set of lines which are parallel to x-axis.

ii. The set of letters in the English alphabet.

ii. The set of numbers which are multiple of 5.

iv. The set of animals living and the earth.

v. The set of circles passing through the origin O.

### Exercise 1.2 solutions Sets class 11 NCERT

Class 11 maths NCERT solutions exercise 1.2 problem 4

In each of the following state whether A = B or not.

i. A = {a, b, c, d }  B = {d, c, a, b }

ii. A = {4, 8, 12, 16}  B = {8, 4, 16, 18}
iii. A = {2, 4,  6, 8, 10 }  B = {x : x is a positive even integer and  x < or = 10}
iv. A = { x : x is a multiple of 10}  B = {10, 15, 20, 25 30, … }

11th maths NCERT solutions exercise 1.2 problem 5
Are the following pair of sets equal. Give reasons.

i. A = {2, 3}, B = {x : x is a solution of x^2 + 5 x + 6 = 0.

ii. A = {x : x  is a letter in the word FOLLOW}

B = {y : y is a letter in the world WOLF}

Class 11 maths NCERT solutions exercise 1.2 problem 4
From the sets given below, select equal sets:

A = {2, 4, 8, 12 }.  B = {1, 2, 3, 4}

C = {4,  8, 12, 14}.  D = {3, 1, 4, 2}
E = { – 1, 1}.  F = {0, a}
G = {1, – 1 }.  H = {0, 1 }

Class 11 maths NCERT solutions exercise 1.2
Note : Observe the solutions and try them in your own method.

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