Sarthaks Test
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If sets A and B are defined as

A = {(x, y) | y =1/x, 0 ≠ x ∈ R}

B = {(x, y) | y = – x, x ∈ R}, then

(A) A ∩ B = A 

(B) A ∩ B = B 

(C) A ∩ B = φ 

(D) A ∪ B = A

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Answer is (C) A ∩ B = φ 

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