Question

If A and B are two sets such that n(A) = 22, n(B) = 18 and n( A ꓵ B ) = 5 then find

n(A ∪ B)​

Answer 1

We know,

n(A∩B)=n(A)+n(B)−n(A∪B)

n(A∩B)=17+23−38=2

Answer 2

Answer:

This is your answer hope it will help you.