计算 (1/2ab^2)/(-2ab)*3a^2b
问题描述：
计算 (1/2ab^2)/(-2ab)*3a^2b
答
原式=-1/4b*3a^2b
=-3/4a^2b^2
计算 (1/2ab^2)/(-2ab)*3a^2b
原式=-1/4b*3a^2b
=-3/4a^2b^2