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![a^{\frac{m}{n}} = \sqrt[n] {a^m} = (\sqrt[n]{a})^m](/tpl/images/0096/9689/a8b46.png)
![= \dfrac{1}{\sqrt[3] {8^2}} = \dfrac{1}{(\sqrt[3] {8})^2} =](/tpl/images/0096/9689/cff43.png)
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