1 calculus Q.
2011-08-27 12:01 am
圖片參考：http://imgcld.yimg.com/8/n/HA00016323/o/701108260070213873449280.jpg
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回答 (1)
2011-08-27 12:15 am
✔ 最佳答案
Let e^ cos x = ud(e^ cos x)/dx = du
e^ cos x (- sin x) dx = du
So I = Integrate du = - u + C = - e^ cos x + C.
2011-08-26 16:17:47 補充：
Correction : 2nd line should be d(e^ cos x)/dx = du/dx
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110826000051KK00702