Let A , B and C be non-empty sets and let X=(A−B)−C Y=(A−C)−(B−C) Which one of…

2005

Answer: A. X=Y

1. A.

   X=Y

2. B.

   X⊂Y

3. C.

   Y⊂X

4. D.

   None of these

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Correct answer: A

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