Explain, in one or two sentences, why the function is one-to-one on whereas is…

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

Problem

Explain, in one or two sentences, why the function

f(x)=x^{3}

is one-to-one on

\mathbb{R}

whereas

g(x)=x^{2}

is not.