Show that the function defined by is bijective

MATHEMATICS · Subjective · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

Show that the function f:(0,∞)→Rf:(0,\infty)\to \mathbb R defined by f(x)=ln⁡xf(x)=\ln x is bijective. Hence, find the expression for f−1(y)f^{-1}(y).

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