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Homework Help: Improper integral

  1. Jul 26, 2008 #1
    1. The problem statement, all variables and given/known data

    Hey.
    I'm kinda stuck on this one, any idea?

    2. Relevant equations



    3. The attempt at a solution
     

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  3. Jul 26, 2008 #2
    link it somewhere else so we can see it asap!
     
  4. Jul 26, 2008 #3
    What do u mean?
     
  5. Jul 26, 2008 #4

    tiny-tim

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    Hi asi123! :smile:

    Have you tried substituting into r and θ? :smile:
     
  6. Jul 26, 2008 #5
    [tex]r^2=x^2+y^2[/tex]
     
  7. Jul 26, 2008 #6

    HallsofIvy

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    In other words, change to polar coordinates.
     
  8. Jul 26, 2008 #7
    10x.
     
  9. Jul 26, 2008 #8
    Work?
     
  10. Jul 26, 2008 #9
    Yeah
     
  11. Jul 26, 2008 #10
    Not what I meant, but sure :)
     
  12. Jul 26, 2008 #11
    What did u mean?
     
  13. Jul 27, 2008 #12

    tiny-tim

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    polar coordinates

    Hi asi123! :smile:
    What did you mean by that? :confused:

    Have you tried polar coordinates yet (r and θ)? :smile:
     
  14. Jul 27, 2008 #13
    Re: polar coordinates

    :smile:

    Yeah, I did it, I changed to polar coordinates and it worked.

    10x.
     
  15. Jul 27, 2008 #14

    tiny-tim

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    ping!

    ah! …

    :biggrin: … you meant "thnx"!! :biggrin:
     
  16. Jul 27, 2008 #15
    Re: ping!

    10x is not like "thnx"? :smile:
     
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