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given n( A) =285 ,n(B) = 195,n(U) = 500,n(AUB) = 410, find n( A' U B' ). |
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Answer» n(A) = 285n(B) = 195n(AUB) = 410n(A'UB') = ?n(AUB) = n(A) + n(B) - n(AᑎB)410 = 285 + 195 - n(AᑎB)n(AᑎB) = 480 - 410 = 70n(A'UB') = n(AᑎB)' = n(U) - n(AᑎB) = 500 - 70n(A'UB') = 430 |
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