MQ40 --- Trigonometry

2012-08-09 4:48 am
MQ40 --- TrigonometryDifficulty: 55%Solve cosⁿx - sinⁿx = 1.

回答 (1)

2012-08-09 8:15 pm
✔ 最佳答案

圖片參考:http://i1191.photobucket.com/albums/z467/robert1973/Aug12/Crazytrigo2.jpg
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2012-08-09 16:22:35 補充:
Yes, the updated image has been uploaded as here:
s1191.photobucket.com/albums/z467/robert1973/Aug12/Crazytrigo3.jpg

Alternatively, case 3 can also be written as n >= 3
參考: 原創答案


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