Which of the following functions are injective? surjective? bijective?                       (i) f : ℝ-ℝ where f(x) = x2. (ii) f : ℝ-ℝ where f(x) = 1/x    (where x ≠ 0). (iii) f : ℝ-ℝ where f(x) = 3x + 1.

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A: Given function is now reciprocal of this function is given by

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