Ответ:

  1. \(27^{\frac13}=\sqrt[3]{27}=3\).
  2. \(1000^{\frac13}=\sqrt[3]{1000}=10\).
  3. \(125^{-\frac13}=\frac1{125^{\frac13}}=\frac15\).
  4. \(32^{\frac25}=(2^5)^{\frac25}=2^2=4\).
  5. \(\left(\frac{64}{8}\right)^{\frac23}=8^{\frac23}=(2^3)^{\frac23}=2^2=4\).

Ответ: \(3;\ 10;\ \frac15;\ 4;\ 4\).