Mathematics · Set Theory

If n(A) = 3, n(B) = 7, and A ⊆ B, then the number of elements in A ∩ B is equal to:

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If n(A) = 3, n(B) = 7, and A ⊆ B, then the number of elements in A ∩ B is equal to:

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If n(A) = 3, n(B) = 7, and A ⊆ B, then the number of elements in A ∩ B is equal to:

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