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If n(A) denotes the number of elements in set A and if n(A)=4, n(B)=5 and n(A∩B)=3 then n[(A×B)∩(B×A)] is |
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Answer» If n(A) denotes the number of elements in set A and if n(A)=4, n(B)=5 and n(A∩B)=3 then n[(A×B)∩(B×A)] is |
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