1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook