Let be given by

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

Problem

Let

g:\mathbb R \to \mathbb R

be given by

g(x)=ax^{3}+3x

, where

a\in\mathbb R

. The function

g

is one–one on

\mathbb R

when (a)

a\neq 0

(b) for all real

a

(c)

a\ge 0

(d)

a>0

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