Question

can we write
n(A) + n(B) = (A n B ) please
tell with proper reason​

Answer 1

Answer:

No

Step-by-step explanation:

let A= 2,4,6

B=2,6,9,1

n(A)= 3

n(B)=4

n(A)+n(B)=7

(AnB)= 2,6 ...

it is not proved

therefore we can not write