Let A and B be sets and let Ac and Bc denote the complements of the sets A and…

1996

Let A and B be sets and let Ac and Bc denote the complements of the sets A and B. The set (A − B) ∪ (B − A) ∪ (A ∩ B) is equal to.

  1. A.

    A ∪ B

  2. B.

    Ac ∪ Bc

  3. C.

    A ∩ B

  4. D.

    Ac ∩ Bc

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Correct answer: A

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