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Fourier Series

  1. Mar 19, 2008 #1
    Use the Fourier series technique to show that the following series sum to the quantities shown:
    1+1/3^2+1/5^2+...+1/n^2=pi^2/8 for n going to infinity

    I foudn the series to be:

    sum(1/(2n-1)^2,n,1,infinity)

    but I don't know how to prove the idenity.

    I don't know how to go about solving it using the Fourier method. Any help would be greatly appreciated, thanks!

    I was able to prove sum(1/n^4,n,1,infinity)=pi^4/90 and sum(1/n^2,n,1,infinity)=pi^2/6 and I'm not sure if the problem is simular.
     
  2. jcsd
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