Let A, B, and C be sets in a universal set U

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Let A, B, and C be sets in a universal set U. We are given n(U) = 73, n(A) = 40, n(B) = 31, n(C) = 32, n(A ∩ B) = 19, n(A ∩ C) = 19, n(B ∩ C) = 17, n(A ∩ B ∩ C) = 9. Find the following values. 

(a) n((A ∪ B ∪ C)c)


(b) n(Ac ∩ Bc ∩ C)

  • 7 years ago
Let A, B, and C be sets in a universal set U
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