Math Chapter Wise Sets, Relations And Functions English MCQ Haryana PGT 2020 Q.Let ∈ x A = {(x,y) y = e,x R}, B = () ∈ { x,y y = x, x R}, then: AB ⊂ A BA ⊂ B CA ∩ B = φ DA ∪ B = A Show answer Correct answer: A ∩ B = φ