Ответ:\(64^{1/2}=\sqrt{64}=8\).\(27^{1/3}=\sqrt[3]{27}=3\).\(8^{2/3}=(\sqrt[3]{8})^2=2^2=4\).\(81^{3/4}=(\sqrt[4]{81})^3=3^3=27\).\(16^{-0,75}=16^{-3/4}=1/(\sqrt[4]{16})^3=1/8\).\(9^{-1,5}=9^{-3/2}=1/(\sqrt{9})^3=1/27\).