I have found that cos^2+cosx - 2=0
Solve 2sinx tanx = 1-cosx
Please show steps!!
1 trigonometry question
2010-05-28 4:28 am
回答 (1)
2010-05-28 4:43 am
✔ 最佳答案
Please see the following:圖片參考：http://img408.imageshack.us/img408/1919/99884150.png
2010-05-27 20:43:09 補充：
http://img408.imageshack.us/img408/1919/99884150.png
2010-05-27 20:43:40 補充：
where n is an integer
收錄日期: 2021-04-23 23:22:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100527000051KK01320