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Integral xsinx limits 0 to infinity

  1. Jul 31, 2011 #1
    1. The problem statement, all variables and given/known data

    So I'm trying to evaluate the following integral:

    [tex] 4\pir^2[/tex]


    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jul 31, 2011 #2

    rock.freak667

    User Avatar
    Homework Helper

    [tex]\int _{0} ^\infty xsinx dx[/tex]

    Well you can integrate by parts and then see what the limits will do.

    Otherwise most integrals with a trig function will lead to a trig function. So is there a limit as x→∞ with sinx?
     
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