Question

4 задание вообще не понятно.Помогите

Answer 1

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Answer 2

$f(x)=\frac{3-x^{\frac{1}{4} } }{2x^{\frac{3}{8} } } \\\\2*f(x^{\frac{2}{3}})=2*\frac{3-(x^{\frac{2}{3}})^{\frac{1}{4} }}{2(x^{\frac{2}{3}})^{\frac{3}{8}}}=2*\frac{3-x^{\frac{1}{6}} }{2x^{\frac{1}{4}}}=\frac{3-x^{\frac{1}{6}}}{x^{\frac{1}{4}}}$