integration x1
2011-03-21 3:12 am
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integration x1
Help~~~~~~~~
回答 (2)
2011-03-21 3:46 am
✔ 最佳答案
∫ 2arcsin(x/5) dx= ∫ 10y(cosy) dy
= 10y(siny) - 10∫ siny dy
= 10y(siny) + 10cosy + C (where C is a constant)
= 2arcsin(x/5) + 2√(25 - x^2) + C
Reference:
http://integrals.wolfram.com/index.jsp
2011-03-20 23:38:02 補充：
I miss a x in the last line. It should be 2x arcsin(x/5) + 2√(25 - x^2) + C
Sorry
2011-03-21 6:45 am
收錄日期: 2021-04-23 00:18:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110320000051KK01149