## Question

###### If $f(x)=x^{2} quad$ is an increasing function, then (here $a>0$ )(a) $x in[a, 2 a)$(b) $x in(-infty,-a] cup[0, a]$(c) $x in(-a, 0)$(d) None of these

If $f(x)=x^{2} quad$ is an increasing function, then (here $a>0$ ) (a) $x in[a, 2 a)$ (b) $x in(-infty,-a] cup[0, a]$ (c) $x in(-a, 0)$ (d) None of these

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