Question: A function f(x) is defined in the interval 1 x 1 by Sketch a graph of f(x) and show that a Fourier series

A function f(x) is defined in the interval –1 ≤ x ≤ 1 by

f(x) = [1/28 (-8

Sketch a graph of f(x) and show that a Fourier series expansion of f(x) valid in the interval
–1 ≤ x ≤ 1 is given by

f(x) = = + n=1 sin COS NTX

f(x) = [1/28 (-e

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