Question

Are C and D equal sets ? Obviously 'No?
Because I E C. 14 D, 2 E D. 26 C
1. C and D are not equal sets. It is written as C+D
If A={1,2,3) and B = {1, 2, 3, 4; then A+B verify it.
Here A = B. Verify,
Ex (3)
Ex (4)
A= {rx is prime number and 10<x< 20) and B = {11, 13, 17, 19)
Practice set 1.2
(1) Decide which of the following are equal sets and which are not ? Justify your
A = { x 3.x -1 = 2}
B = {x|x is a natural number but x is neither prime nor composite)
C = {x XEN, x<2}
(2) Decide whether set A and B are equal sets. Give reason for your answer.
A = Even prime numbers
B = {x 7.x -1 = 13}
(3) Which of the following are empty sets ? why?
(i) A = {ala is a natural number smaller than zero.
(ii) B = {x x = 0; (iii) C = {x 5x - 2 = 0, x6 N}​

Answer 1

Step-by-step explanation:

nor composite)

C = {x XEN, x<2}

(2) Decide whether set A and B are equal sets. Give reason for your answer.

A = Even prime numbers

B = {x 7.x -1 = 13}

(3) Which of the following are empty sets ? why?

(i) A = {ala is a natural number smaller than zero.

(ii) B = {x x = 0; (iii) C