標題:

1 trigonometry question

發問:

I have found that cos^2+cosx - 2=0 Solve 2sinx tanx = 1-cosx Please show steps!!

最佳解答:

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

其他解答:

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