Prove,by inducation,that for all positive integers n.
sinx +sin3x+...+sin(2n-1)x=(sin^2 nx)/sinx,where x is not a multiple of 丌.
maths MI
2008-09-10 5:25 am
回答 (2)
2008-09-10 10:06 pm
✔ 最佳答案
The answer is as follows:圖片參考：http://i277.photobucket.com/albums/kk75/uncle_michael/080910_mat_3a.jpg?t=1221026686
圖片參考：http://i277.photobucket.com/albums/kk75/uncle_michael/080910_mat_3b.jpg?t=1221026759
2008-09-10 5:47 am
http://hk.knowledge.yahoo.com/question/question?qid=7008050501024
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