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(A∩B) ∪ (B∩A) = ______________(a) A(b) B(c) A∪B(d) A∩BThis question was posed to me in exam.The query is from Operation on Sets-2 in section Sets of Mathematics – Class 11

Answer» CORRECT ANSWER is (d) A∩B

Easiest EXPLANATION: (A∩B) ∪ (B∩A) = (A∩B) ∪ (A∩B) (COMMUTATIVE LAW)

= A∩B (A∪A=A).


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