“微信扫一扫”进入题库练习及模拟考试
把下列根式化成分数指数幂:
参考答案:\(\frac{1}{{\sqrt[3]{{x{{(\sqrt[5]{{{x^2}}})}^2}}}}} = \frac{1}{{\sqrt[3]{{x \cdot {{({x^{\frac{2}{5}}})}^2}}}}} = \frac{1}{{\sqrt[3]{{x \cdot {x^{\frac{4}{5}}}}}}} = \frac{1}{{\sqrt[3]{{{x^{\frac{9}{5}}}}}}} = \frac{1}{{{{({x^{\frac{9}{5}}})}^{\frac{1}{3}}}}} = \frac{1}{{{x^{\frac{3}{5}}}}} = {x^{ - \frac{3}{5}}}.\)