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Homework Help: Computing triple integral

  1. Mar 8, 2009 #1
    1. The problem statement, all variables and given/known data

    http://img19.imageshack.us/img19/5192/captureonr.th.jpg [Broken]

    Can anyone tell me if I did any mis-computation on evaluating the triple integral above?

    2. Relevant equations



    3. The attempt at a solution
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Mar 8, 2009 #2

    gabbagabbahey

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    The image is too small and grainy for me to read clearly....could you upload a larger version of it?
     
  4. Mar 8, 2009 #3
    I uploaded a better image, I hope you can read it now
     
  5. Mar 8, 2009 #4

    gabbagabbahey

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    That's much better, and also correct:approve:

    (Although it's only a double integral, not a triple integral as the thread title suggests)
     
  6. Mar 8, 2009 #5
    so all my computations there are all correct?
     
  7. Mar 8, 2009 #6

    gabbagabbahey

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    Edit: no, you have an extra factor of 2....
     
  8. Mar 9, 2009 #7
    where at? the 2pi you mean?
     
  9. Mar 9, 2009 #8

    gabbagabbahey

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    yes, you brought the 2 inside the integral in order to compute the antiderivative of 2re^(-r^2)dr....but on the next line of your calculation, it was back outside the integral
     
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