27分之64的负3分之2次方怎么算啊

2024-12-29 12:32:17
推荐回答(2个)
回答1:

回答2:

(64/27)^(-2/3)
=(27/64)^(2/3)
=(3^3/4^3)^(2/3)
=(3/4)^2
=9/16