问题描述: 计算:(lg根号下27+lg8-lg根号下1000)\lg1.2 1个回答 分类:数学 2014-10-31 问题解答: 我来补答 解; (lg√27+lg8-lg√1000)/lg1.2=(lg3^3/2+lg2^3-lg10^3/2)/lg1.2=(3/2lg3+3lg2-3/2lg2-3/2lg5)/lg1.2=(3/2lg3+3/2lg2-3/2lg5)/lg1.2=3/2(lg3+lg2-lg5)/lg1.2=3/2(lg6-lg5)/lg1.23/2lg6/5/lg1.2=3/2lg1.2/lg1.2=3/2 展开全文阅读