If and , what is the domain of the composite function…

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

Problem

If f(x)=log⁡2xf(x)=\log_2x and g(x)=3xg(x)=3^x, what is the domain of the composite function (f∘g)(x)(f\circ g)(x)? (a) (0,∞)(0,\infty) (b) R\mathbb{R} (c) {x∈R∣x≠0}\{x\in\mathbb{R}\mid x\ne0\} (d) (1,∞)(1,\infty)

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