Question

if X and Y are two sets such that n(x)=33,n(Y)=42 and n(XUY)=70,then n (X♎Y) is​

Answer 1

Answer: n(X∩Y)

Step-by-step explanation:

n(X) = 33

n(Y) = 42

n(X∪Y) = 70

n(X∩Y) = n(X) + n(Y) - n(X∪Y)

            = 33+42-70

            =75-70 = 5