Question

if A={1,2,3,4,5;B={2,4,6,8}then verify relation n(AuB=n(A)+n(AnB)​

Answer 1

Answer:

AUB = 1,2,3,4,5,6,8

n(AUB) = 7

n(A) = 5

AnB = 2,4

n(AnB) = 2

n(AuB)=n(A)+n(AnB)

7 = 5 + 2

7 = 7

Hence proved.