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Set Theorymedium
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If n(A)=18,n(B)=22n(A) = 18, n(B) = 22n(A)=18,n(B)=22, and n(A∪B)=35n(A \cup B) = 35n(A∪B)=35, what is n(A∩B)n(A \cap B)n(A∩B)?