Question

If n(A) = 7, n (B) = 13, n(AB) = 4 then find n(AUB) = ?​

Answer 1

Step-by-step explanation:

n(A)=7,n(B)=13,n(A intersection B)=4,n(AUB)=?

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

n(AUB)=7+13-4

n(AUB)=20-4

n(AUB)=16