作者coilion9670 (白熊)
看板Math
标题[微积] 微积分题目 我不知道我怎麽表示
时间Tue Sep 27 01:44:19 2011
Show by means of an example that lim x->a [f(x)+g(x)] may exist even though
neither lim x->a f(x) nor lim x->a g(x) exists.
感谢各位大哥大姐为我解析一下
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.128.194.70
1F：推 goshfju :x->0 , f(x)=g(x)=1/x 我承认我懒得想例子..XD 09/27 02:07
2F：推 infinity99V :f(x) = 1 / (x-a), g(x) = -f(x)不知道对不对 09/27 02:18
3F：推 goshfju :喔 我少个负号这样 XD 09/27 02:25