(In)ln y dy
求solution- -
pure maths
2007-05-28 8:58 am
回答 (1)
2007-05-28 9:13 am
✔ 最佳答案
(In)Iny dy=lny(y)-(IN)y(1/y)dy (Integration by part)
=ylny-y+c
收錄日期: 2021-04-13 00:33:38
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070528000051KK00264