If A and B are two sets such that n(A) = 46, n(B) = 34, n(A ∪ B) = 60, then n(A ∩ B) is यदि A तथा B दो समुच्चय हैं जबकि n(A) = 46, n(B) = 34, n(A ∪ B) = 60, तब n(A ∩ B) का मान है
If A and B are two sets such that n(A) = 70, n(B) = 60, n(A∪B)= 110, then n(A∩B) is equal to
If A and B are two disjoint sets, then n(A∪B) is equal to