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How do work out the Fourier series of f(x) = |x| - [tex]\pi[/tex] on ([tex]\pi[/tex],[tex]\pi[/tex]].
squenshl said:How do work out the Fourier series of f(x) = |x| - [tex]\pi[/tex] on ([tex]\pi[/tex],[tex]\pi[/tex]].
squenshl said:I see. Since f(x) is an even function, when it goes to finding b_{n} you multiply an even function with sin which an odd function to get an odd function and the integral of an odd function is always zero