问题描述: lim x趋近于0 (sinx+tan3x)/2x的极限值 1个回答 分类:综合 2014-09-25 问题解答: 我来补答 sinx is the same infinitesimal as x.tan3x is the same infinitesimal as 3x.Therefore,lim (sinx+tan3x)/2x = 4x/2x = 2 展开全文阅读