Question

if n(A)=15 n(B)=22 and (AnB)=8 the n (AuB)​

Answer 1

Answer:

According to cardinal no. of sets.

n (AUB)=n(A)+n(B) - n(A∩B)

Putting the values,

=>n(AUB)=n(A)+n(B) - n(A∩B)

=>n(AUB)=15+22-8

=>n(AUB)=37-8=29