1.

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»

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



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