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Definite integral

  1. Oct 24, 2013 #1
    1. The problem statement, all variables and given/known data


    2. Relevant equations

    3. The attempt at a solution

  2. jcsd
  3. Oct 24, 2013 #2
    Could you write some sentences too? You just posted a bunch of equations. So, could you tell us exactly the statement that needs to be proven. Tell us in words what you did. Tell us exactly where you are stuck.
  4. Oct 24, 2013 #3
    bn needs to be computed. The solution is under 1.

    I computed bn and the end result is under 3. The issue is that my end result doesn't match the solution's end result.
  5. Oct 24, 2013 #4


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    Staff Emeritus
    Science Advisor
    Gold Member

    You got the same answer, just cancel the positive and negative
    [tex]\frac{2}{n\pi} \cos\left( \frac{n\pi}{2} \right) [/tex]
    that you have
  6. Oct 24, 2013 #5
    Thanks. These fourier series problems are so painfully long T_T.
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