[ALM] Differential Equation 2

2010-09-07 2:38 am
∫[1/√(25 - k^2)]dk

請問有咩方法易睇出黎?

OR

有無一些相似的題目提供?

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更新1:

I will choose you after 4 hours

回答 (2)

2010-09-07 3:12 am
✔ 最佳答案
As follows:

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2010-09-06 19:21:31 補充:
This integration is easily solved by substitution as what we want to do is to eliminate the square root sign in the denominator. Hence, we use the identity sin²θ+cos²θ=1 to perform the elimination of the square root sign=]

2010-09-06 19:33:24 補充:
um...The approach to solve will be a lot more complicated...
2010-09-07 3:13 am
Oh....Amazing Maths0.0 Thanks a lot~

2010-09-06 19:23:36 補充:
How about if there is power 3, then what should we do in order to solve the question??

2010-09-06 19:37:50 補充:
Thanks for your answer, I would try my best to solve it if I meet it ^^"


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