Prove by mathematical induction where n is a positive integer:
cosxcos2xcos2^2 xcos2^3 x...cos2^n x=sin2^n+1 x/2^n+1 sinx
Compound angle (prove)
2008-03-02 11:41 pm
回答 (1)
2008-03-03 12:01 am
✔ 最佳答案
Please refer to the following solution:圖片參考：http://hk.geocities.com/stevieg_1023/MI893274.gif
收錄日期: 2021-04-25 17:19:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080302000051KK01865