Question

AERCISE 1.6
1.
If X and Y are two sets such that n(X) = 17, n (Y) = 23 and n (XUY)= 38,
find n (XY). a) 2.b)3​

Answer 1

Step-by-step explanation:

We know,

n(A∩B)=n(A)+n(B)−n(A∪B)

n(A∩B)=17+23−38=2