Questions on Logic: Finite and infinite sets answered by real tutors!

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Question 148057: If n(A) = 22, n(B) = 13, nd n(A∩B) = 6 then n(A U B)=



: If n(A) = 22, n(B) = 13, nd n(A∩B) = 6 then n(A U B)=




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