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Mathematics, 05.05.2021 20:20 dilu76

If n(A) = 30, n(B) = 28 and n(A ∩ B) = 28, find: n(A Δ B).

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If n(A) = 30, n(B) = 28 and n(A ∩ B) = 28, find: n(A Δ B)....

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