∫tan(x)dx = ?
求答案與步驟
integration
2011-01-11 1:47 pm
回答 (1)
2011-01-11 3:19 pm
✔ 最佳答案
∫tan(x)dx =∫ (sinx/cosx) dx
= -∫(dcosx/cosx)*
= -In|cosx|
* ∫ [df(x)/f(x)] = In|f(x)|
參考: ME
收錄日期: 2021-04-26 18:01:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110111000051KK00252