a-maths~@!

👨🏻‍🏫 學術台數學

用戶7639

2008-10-04 12:51 am

http://www.photo-host.org/img/985179screenhunter_04_oct._03_16.47.gif

回答 (1)

Patrick仔

2008-10-04 1:56 am

✔ 最佳答案

here is the solution:

圖片參考：http://img354.imageshack.us/img354/7301/hhggmy8.jpg

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