If X and Y are two sets such that n (X) = 17

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If X and Y are two sets such that n (X) = 17, n (Y) = 23 and n ( X ∪ Y ) = 38 , find n ( X ∩ Y )
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Oct
If X and Y are two sets such that n (X) = 17, n (Y) = 23 and n ( X ∪ Y ) = 38 , find n ( X ∩ Y ) find n ( X ∩ Y ) If X and Y are two sets such that n (X) = 17 n [...]
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