find the limit of function?

2015-10-24 7:21 am
find the limit of lim(x--->0+) lnx/ln(ln(1+x))

回答 (1)

2015-10-24 8:21 am
✔ 最佳答案
as x → 0+
ln x / ln [ ln(1+x) ]
→ (1/x) / { [ 1 / ln(1+x) ] * [ 1/(1+x) ] } , by the L'hopital rule
= (1+x) * ln(1+x) / x
→ [ ln(1+x) + (1+x)/(1+x) ] / 1 , by L rule
= ln(1+x) + 1
→ 1 ..... Ans


收錄日期: 2021-05-02 14:09:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20151023232136AA4u5dz

檢視 Wayback Machine 備份