计算:(0.5)的61次方乘(-4)的30次方

问题描述:

计算:(0.5)的61次方乘(-4)的30次方

(0.5)^61*(-4)^30
=(1/2)^61*2^60
=(1/2)^60*2^60*(1/2)
=(2*1/2)^60*(1/2)
=1/2

(0.5)^61 * (-4)^30
=(1/2)^61 * (-1)^30 * (2²)^30
=(1/2)^60 * 1/2 * 2^60
=1/2

楼主你好
(0.5)^61*(-4)^30
=(0.5)^30*(-4)^30*(0.5)^31
=2^30*(0.5)^30*0.5
=0.5
望采纳~