Engineering Mathematics III
SH 501
Question
2083 BaishakhChapter 4: Fourier Series4.1 Fourier Series
Obtain the Fourier Series to represent (f(x)=x-x^2) from (x=-\pi) to (x=\pi) and hence deduce that (\pi^2/12=1/1^2-1/2^2+1/3^2-1/4^2+\cdots).
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