Let A and B be two non empty sets such that n(A)=5, n(B)=6 and n(A∩B – InterviewSolution

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Let A and B be two non empty sets such that n(A)=5, n(B)=6 and n(A∩B)=3. Find (i) n(A×B), (ii) n(B×A) and (iii) n(A×B)∩(B×A)

Answer»

Let A and B be two non empty sets such that $n (A) = 5, n (B) = 6$ and $n (A \cap B) = 3$ .

Find (i) $n (A \times B)$ ,

(ii) $n (B \times A)$ and

(iii) $n (A \times B) \cap (B \times A)$

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