(sin 60 - sin 45) / (cos 30 + cos 45)
=?
=?
=?
SS1 Maths trigonometry revisio
2010-06-06 7:11 pm
回答 (1)
2010-06-06 7:18 pm
✔ 最佳答案
Please see the following:圖片參考：http://img707.imageshack.us/img707/6956/58252980.png
2010-06-06 11:18:07 補充：
http://img707.imageshack.us/img707/6956/58252980.png
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100606000051KK00474