Identify the function that is one-one on the entire set of real numbers .

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

Problem

Identify the function that is one-one on the entire set of real numbers

\mathbb{R}

. (a)

f(x)=x^{3}-x

(b)

f(x)=\sqrt{x}

(c)

f(x)=x^{3}

(d)

f(x)=\tan x