a maths...
2007-12-17 3:34 am
回答 (1)
2007-12-17 4:01 am
✔ 最佳答案
(1)圖片參考：http://i117.photobucket.com/albums/o61/billy_hywung/Dec07/Crazytrigo1.jpg
(2)
圖片參考：http://i117.photobucket.com/albums/o61/billy_hywung/Dec07/Crazytrigo2.jpg
參考: My Maths knowledge
收錄日期: 2021-04-25 13:04:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071216000051KK03795