http://i409.photobucket.com/albums/pp172/momoko_deedee/wk6_dash.jpg
http://i409.photobucket.com/albums/pp172/momoko_deedee/est.jpg
would u mind showing me the steps ?
thx alot^^
derivative of inverse cosech
2010-04-22 10:11 pm
回答 (1)
2010-04-23 6:41 am
✔ 最佳答案
==================================================圖片參考：http://img405.imageshack.us/img405/7280/20711933.png
2010-04-22 22:41:27 補充：
http://img405.imageshack.us/img405/7280/20711933.png
收錄日期: 2021-04-23 23:21:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100422000051KK00480