GATE | GATE-CS-2005 | Question 8

Let A, B and C be non-empty sets and let X = (A – B) – C and Y = (A – C) – (B – C).

Which one of the following is TRUE?
(A) X = Y
(B) X ⊂ Y
(C) Y ⊂ X
(D) none of these


Answer: (A)

Explanation: We can solve it by making Venn diagram

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