Ответ:

  1. \(4\cdot25^{1/2}=4\cdot5=20\).
  2. \(81^{-1/4}=1/\sqrt[4]{81}=1/3\).
  3. \((1/3)^{-1}-2^{-4}\cdot2^{-6}=3-2^{-10}=3-1/1024=3071/1024\).
  4. \(\sqrt[3]{125}-\sqrt[5]{1/32}=5-1/2=9/2\).
  5. \(\sqrt[5]{32\cdot0.00001}=\sqrt[5]{0.00032}=0.2\), поскольку \(0.2^5=0.00032\).
  6. \(\frac{\sqrt[8]{243}}{\sqrt[4]{3}}=\frac{3^{5/8}}{3^{1/4}}=3^{3/8}=\sqrt[8]{27}\).