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Mathematics, 18.02.2021 03:40 phirejz6402

7) Suppose that n
n(A)=15, n(An B)=5,
and n(AUB) = 30.
Find n(B).

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7) Suppose that n
n(A)=15, n(An B)=5,
and n(AUB) = 30.
Find n(B)....
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