Mathematics · Set Theory

माना n(U) = 30, n(A') = 15, n(B) = 5 और n(A ∩ B) = 3, तो n(A ∪ B) का मान है:

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माना n(U) = 30, n(A') = 15, n(B) = 5 और n(A ∩ B) = 3, तो n(A ∪ B) का मान है:

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माना n(U) = 30, n(A') = 15, n(B) = 5 और n(A ∩ B) = 3, तो n(A ∪ B) का मान है:

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