0.2的负二次方乘0.064的1/3次方等于多少
问题描述:
0.2的负二次方乘0.064的1/3次方等于多少
答
0.2⁻²×0.064的1/3次方
=(1/5)⁻²×[(0.4)³]的1/3次方
=5²×0.4的(3×1/3)次方
=25×0.4
=10