Ответ:\(64^{1/2}=8\);\(27^{1/3}=3\);\(8^{2/3}=4\);\(81^{3/4}=27\);\(16^{-0.75}=16^{-3/4}=\frac18\);\(9^{-1.5}=9^{-3/2}=\frac1{27}\).Ответ: 8; 3; 4; 27; \(\frac18\); \(\frac1{27}\).