Let A, B, and C be sets in a universal set U. We are given n(U) = 58, n(A) = 23, n(B) = 21, n(C) = 23, n(A ∩ B) = 8, n(A ∩ C) = 6, n(B ∩ C) = 11, n(A ∩ B ∩ CC) = 4. Find the following values.

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A:

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Set Theory

Every field in the present world involves a set. The theory of sets was developed by German mathematician Georg Cantor while working on the “problems of trigonometric series”.