Question

1+3x
8=
EXERCISE 5
1. Which of the following collections of objects are sets ?
(1) All good cricket players of Delhi.
(ii) All consonants in English alphabet.
(iii) All natural numbers less than 125.
(iv) All students of your class whose heights between 135 cm and 155 cm.
(v) All popular cinema actors in Mumbai.
2. Let the universal set U = {x : r e Z, -3 Sx<3},
A = {x:x e W x < 3} and {B = x:x € N, 1<x<3).
Find
(i) A'
(ii) B'
3. Let A = {a, b, c, d), B = {a, b, e}. Find
(i) AUB
(ii) AB
(iii) A-B
AB
(iv) B-A​

Answer 1

Answer:

1+3x=8

1-8=3x

7=3x

x=7/3

2

x=1------

3