Ответ:

  1. \(8=2^3\).
  2. \(\sqrt[3]{\left(\frac{1}{5}\right)^2}=\left(\frac{1}{5}\right)^{\frac{2}{3}}\).
  3. \(\sqrt[5]{4}=4^{\frac{1}{5}}\).
  4. \(1024=2^{10}\).
  5. \(\sqrt[3]{\frac{4}{9}}=\left(\frac{4}{9}\right)^{\frac{1}{3}}\).
  6. \(3\cdot\sqrt[3]{9}=3\cdot3^{\frac{2}{3}}=3^{\frac{5}{3}}\).