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Integration expansion

  1. May 17, 2017 #1
  2. jcsd
  3. May 17, 2017 #2

    Ray Vickson

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    PF rules forbid us from telling you how to do the question; we can offer hints only. My hint is: try a different integration by parts, because the one you used does not work.
     
  4. May 17, 2017 #3
    Indeed I have tried x-3, sqrt(x-3), x^n
    All of the mentioned just do not help me in simplifying the equation, things just get more complicated...
    That's the reason I believe I have done the wrong thing in the calculation...
     
  5. May 17, 2017 #4

    ehild

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    You can not integrate (u2-3)n as you did. Write it as (u2-3)n-1*u * u and try integration by parts.
     
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