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Set Theoryeasy
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If n(A−B)=10,n(B−A)=12,n(A-B) = 10, n(B-A) = 12,n(A−B)=10,n(B−A)=12, and n(AcapB)=5n(A \\cap B) = 5n(AcapB)=5, find n(AcupB)n(A \\cup B)n(AcupB).