請詳細步驟教我計下條 :
(不要網址回答)
In triangle ABC, simplify
sin<B sin<A + sin(<B+<C) sin (<A+<C)
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sin<B cos<A - cos(<B+<C) sin (<A+<C)
答案是 : tan <A
急 ! triangle simples 點做 ???
2012-09-18 9:20 pm
回答 (1)
2012-09-18 11:25 pm
✔ 最佳答案
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I HOPE THIS CAN HELP YOU! ~ ^_^
參考: My Maths World
收錄日期: 2021-04-13 18:58:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120918000051KK00185