Let be given by

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

Problem

Let

f:\mathbb{R}\to(0,\infty)

be given by

f(x)=e^{kx}

, where

k

is a real parameter. For which value(s) of

k

is

f

bijective? (a)

k>0

(b)

k=0

(c)

k\ne 0

(d)

k<0

Related theory

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