微積分積分的問題
回答 (2)
2012-07-03 1:29 am
✔ 最佳答案
圖片參考：http://i320.photobucket.com/albums/nn347/old-master/20120702_1.jpg
http://i320.photobucket.com/albums/nn347/old-master/20120702_1.jpg
參考: 老爺子
2012-07-02 8:48 pm
是 ∫ 2/(x^2 -1) dx ?
2012-07-02 13:25:09 補充：
∫2/(x^2 - 1)
= ∫[1/(x - 1) - 1/(x + 1)]dx
= ln|x - 1| - ln|x + 1| + C
= ln|(x - 1)/(x + 1)| + C
= - 2atanh x + C
2012-07-02 13:25:09 補充：
∫2/(x^2 - 1)
= ∫[1/(x - 1) - 1/(x + 1)]dx
= ln|x - 1| - ln|x + 1| + C
= ln|(x - 1)/(x + 1)| + C
= - 2atanh x + C
收錄日期: 2021-04-13 18:47:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120702000010KK02751