ser. the etermined by f(x) = x² for x = [-π, π] and f(x+2) = f(x) for all € R and using facts considered in lecture, explain why the Fourier ries coverges to f(x) at each point x = (-7, 7). ) Using the Fourier series representation from part (a), evaluate =(-1)" (−1)n n² =1

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