(-2)的50次幂*(-0.5)的49次幂
问题描述:
(-2)的50次幂*(-0.5)的49次幂
答
(-2)的50次幂*(-0.5)的49次幂
=-2*(-2)的49次幂*(-0.5)的49次幂
=-2*[(-2)*(-0.5)]^49
=-2*1^49
=-2