vector calculus
2010-11-21 6:37 pm
can you solve the following question? thanks
圖片參考：http://imgcld.yimg.com/8/n/HA05948807/o/701011210033913873413250.jpg
回答 (1)
2010-11-21 9:53 pm
✔ 最佳答案
=========================================================圖片參考：http://img189.imageshack.us/img189/6866/21681989.png
2010-11-21 13:53:46 補充：
http://img189.imageshack.us/img189/6866/21681989.png
收錄日期: 2021-04-23 23:23:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101121000051KK00339