Question

(-9的1009次幂乘以(-1/27)的673次幂等于多少？

Answer 1

(-9）的1009次幂x(-1/27)的673次幂
=（3²）的1009次幂x （1/3³）的673次幂
=3的2018次幂 x3的-2019次幂
=3的2018-2019次幂
=3的-1次幂
=1/3

Answer 2

(-9)^1009 x (-1/27)^673
=(-3^2)^1009 x [(-3)^(-3)]^673
=-(3)^2018 x (-3)^(-2019)
=3^(2018-2019)
=3^(-1)
=1/3