Question 201116
*[Tex \LARGE (7x)^{-\frac{1}{7}}=\left(\frac{1}{7x}\right)^{\frac{1}{7}}=\frac{1}{\sqrt[7]{7x}}]


In short, *[Tex \LARGE (7x)^{-\frac{1}{7}}=\frac{1}{\sqrt[7]{7x}}]



Note: *[Tex \LARGE (x)^{-\frac{m}{n}}=\frac{1}{\sqrt[n]{x^m}]