Ответ:\(6^{1/2}=\sqrt6\).\(27^{1/3}=3\).\(8^{2/3}=(\sqrt[3]{8})^2=4\).\(81^{3/4}=(\sqrt[4]{81})^3=27\).\(16^{-0.75}=16^{-3/4}=1/27\).\(9^{-1.5}=9^{-3/2}=1/27\).