Math Chapter Wise Sets, Relations And Functions English MCQ UP PCS (Pre) 1994 Q.The function 1 sin x 1 1 f(x) 2 x x 2 − = + + = + + = + + = + + − is defined for: A–1≤ x ≤ 1 B2 < x Cx = 0 Dnone of these Show answer Correct answer: none of these