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Simple Integral. I'm a bit rusty.

  1. Sep 6, 2010 #1
    1. The problem statement, all variables and given/known data

    Take the integral of
    1/[(z^2 + x^2) ^ 3/2] dx where z is a constant.



    2. Relevant equations



    3. The attempt at a solution

    I tried substitution, but couldn't get it to work. Thanks in advance.
     
  2. jcsd
  3. Sep 6, 2010 #2

    rock.freak667

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    Have you tried x=ztanθ ?
     
  4. Sep 6, 2010 #3
    Yes but I was confused on the next step. I tried to look into trig substitutions.
     
  5. Sep 6, 2010 #4

    rock.freak667

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    Could you post your entire working?
     
  6. Sep 6, 2010 #5
    Oh, never mind I think I just figured it out. Thanks for your help!
     
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