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Homework Help: Problem with Integration Problem

  1. May 7, 2010 #1
    1. The problem statement, all variables and given/known data

    Evaluate the following integrals .

    (1) [tex]\int \sin \frac{1}{x} dx[/tex]

    (2) [tex]\int \sin x^2 dx[/tex]

    2. Relevant equations



    3. The attempt at a solution

    i don see a way to transform those integrals to a form where i can integrate them
     
  2. jcsd
  3. May 7, 2010 #2
    Re: integration

    I know [tex]\int \sin x^2 dx[/tex] does not have an integral in terms of elementary functions so you have integrate its Taylor series or something else.
     
  4. May 7, 2010 #3
    Re: integration

    Have you tried that? It does not work.
     
  5. May 7, 2010 #4
    Re: integration

    I have not heard of the taylor series , maybe these questions are not for my level .
     
  6. May 7, 2010 #5
    Re: integration

    Ever heard of the reduction formulas?
     
  7. May 7, 2010 #6
    Re: integration

    There are a lot of mysterious posts by this "estro" character that suddenly disappear... it's like the Bermuda Triangle of PF!
     
  8. May 7, 2010 #7
    Re: integration

    how can that happen ? I dont see his post or he can delete his own posts ? I thought only the mods or admins can do that , this is strange.
     
  9. May 7, 2010 #8
    Re: integration

    I did delete my post, as it was foolish...
     
  10. May 7, 2010 #9
    Re: integration

    Don't be so hard on yourself! Plus, I like my Bermuda Triangle PF Theory better.
     
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