(1/3)的-2次幂怎么求?
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(1/3)的-2次幂怎么求?
(1/3)的-2次幂怎么求?
(1/3)的-2次幂怎么求?
原式=3^2=9
=(3^(-1))^(-2)
= 3^(-1*-2)
= 3^2
= 9
(1/3)的-2次幂怎么求?
(1/3)的-2次幂怎么求?
(1/3)的-2次幂怎么求?
原式=3^2=9
=(3^(-1))^(-2)
= 3^(-1*-2)
= 3^2
= 9