Let be invertible with range

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

Let f:[−3,4]→Rf:[-3,4]\to\mathbb{R} be invertible with range [1,9][1,9]. What is the domain of f−1f^{-1}? (a) [−3,4][-3,4] (b) R\mathbb{R} (c) [1,9][1,9] (d) (1,9)(1,9)

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