125的2019次幂乘-0.008的2020次幂等于多少?

2025-06-21 05:56:24
推荐回答(2个)
回答1:

125的2019次幂x(-0.008)的2020次幂
=125x2019次幂x0.008x的2020次幂
=125x2019次幂x0.008x的2019次幂x0.008
=(125x0.008)的2019次幂x0.008
=1x0.008
=0.008

回答2:

-0.008化成-1/125,约分得2