The questions are posted as follow:
圖片參考：http://imgcld.yimg.com/8/n/HA01097219/o/701011190133713873412600.jpg
some math questions (urgent)
2010-11-20 5:55 am
回答 (1)
2010-11-20 6:59 am
✔ 最佳答案
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2010-11-19 22:59:16 補充：
http://img257.imageshack.us/img257/23/41705206.png
2010-11-20 10:11:07 補充：
Alternative solution for (3)
http://img163.imageshack.us/img163/2867/20183703.png
收錄日期: 2021-04-19 23:42:29
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101119000051KK01337