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Fourier Coefficient

  1. Jul 24, 2010 #1
    1. The problem statement, all variables and given/known data

    Hello, i'm have to resolve a PDE. The result of that analysis and resolution is that fourier series, and i have to find the [tex]B_n[/tex] coefficient. because [tex]A_n[/tex] i found it.

    2. Relevant equations

    [tex]$21={\displaystyle \sum_{n=0}^{\infty}[2n\pi B_{n}-A_{n}]sin(\dfrac{n\pi x}{3})}$[/tex]

    with [tex]$1x\in[0,3]$[/tex]

    3. The attempt at a solution

    [tex]$2A_{n}=\dfrac{4}{3}\int_{0}^{3}sin(\dfrac{n\pi x}{3})$[/tex]
    [tex]$2B_{n}=?[/tex]
     
    Last edited: Jul 24, 2010
  2. jcsd
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