简便计算:(-4)^99*(-1/2)^200
问题描述:
简便计算:(-4)^99*(-1/2)^200
答
(-4)^99*(-1/2)^200
=-4^99*(1/2)^200
=-(2^2)^99*(1/2)^200
=-2^198*(1/2)^198*(1/2)^2
=-(2*1/2)^198*(1/2)^2
=-1/4