Question

If n(A) = 16, n(B) = 13 and n(AUB) = 22, then find n(A - B) and n(B - A).

Answer 1

Answer:

3 and -3

Step-by-step explanation:

a) n(A-B) = 16-13

= 3

b) n(B-A) = 13-16

= -3