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Help with integration

  1. Apr 24, 2012 #1
    1. The problem statement, all variables and given/known data

    http://prikachi.com/images/201/4687201t.gif

    2. Relevant equations

    Given in class on material connected with undefined integral

    3. The attempt at a solution
    Hard for me to grasp that one...
    P.S Thanks in advance
     
  2. jcsd
  3. Apr 24, 2012 #2
    Use integration by partial fractions.
     
  4. Apr 24, 2012 #3

    Mark44

    Staff: Mentor

    The integrand is not a rational expression, so I don't see how this technique could work.

    A better approach, I believe, is to complete the square inside the radical, and then use a trig substitution.
     
  5. Apr 24, 2012 #4
    Hmmm, good point trig substitution would probably work.
     
  6. Apr 24, 2012 #5
    I finally done it with a little help from a friend :)
    http://prikachi.com/images/946/4687946U.gif
    which is arcsin√x +C
     
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