d(e1/x)/d(1/x)=e^1/x
why?
d(e1/x)/d(1/x)=e^1/x
2008-02-04 10:08 am
回答 (1)
2008-02-04 1:16 pm
✔ 最佳答案
已知d(e^x) / dx = e^x
同樣
d(e^y) / dy = e^y
當y= 1/x
d[e^(1/x)]/d(1/x) = e^ (1/x)
只係將個x 轉成 1/x, 成線數照抄
收錄日期: 2021-04-29 20:20:48
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080204000051KK00303