Ответ:

  1. \(16^{1/2}=\sqrt{16}=4\).
  2. \(27^{2/3}=(\sqrt[3]{27})^2=3^2=9\).
  3. \(8^{1/3}=\sqrt[3]{8}=2\).
  4. \(64^{1/3}=\sqrt[3]{64}=4\).
  5. \(16^{-0,75}=16^{-3/4}=1/(\sqrt[4]{16})^3=1/8\).
  6. \(9^{-1,5}=9^{-3/2}=1/(\sqrt{9})^3=1/27\).

Ответ: 4; 9; 2; 4; 1/8; 1/27.