Let A and B be two sets such that : n (A) = 20 , n(A∪B)=42 and n(A� – InterviewSolution

1.

Let A and B be two sets such that : n (A) = 20 , n(A∪B)=42 and n(A∩B)=4. Find (i) n (B) (ii) n (A - B) (iii) n (B - A)

Answer»

Let A and B be two sets such that : n (A) = 20 , $n (A \cup B) = 42 a n d n (A \cap B) = 4$ . Find

(i) n (B) (ii) n (A - B)

(iii) n (B - A)

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