Question

 If n(A) = 26, n(A ∪ B) = 40, n(A ∩ B) = 8, n(B) = ?​

Answer 1

Answer:

n(B)=22

Step-by-step explanation:

The Fundamental theorem on Sets is

n(AUB)=n(A) + n(B) - n(AnB)

Here n(A) means the cardinal number of A

or the number of elements in A

Answer 2

Answer:

answer attached in photos