问题描述: 一道二元函数求极限的题征求解答若x→0,y→0lim(x+y)sin〔1/(x^2+y^2)〕的极限. 1个回答 分类:数学 2014-11-07 问题解答: 我来补答 lim(x->0,y->0)(x+y)sin(1/(x^2+y^2)lim(x->0,y->0)(x+y)=0|sin(1/(x^2+y^2)|0,y->0)(x+y)sin(1/(x^2+y^2)=0 展开全文阅读