Determine the Fourier Series of f(x) = x, over the interval - < x < and has period 2 ! f(x) = Зл 4 ...] [ cos x+cos3x + cos 5x + [sina+sin 2x + sin 3x + 1 1 f(x) 72 - {sin x + 2 sin 2r + 2 sin 3x + 3 1 f(x) 2 [sin.x -sin 2x + sin 3 - ...] 2 3 O $ 1 1 1 f(x) = -4 0062-2006 22 +008 3 - 2 cos 4x +...] cos cos 3x 3 3² 4² # = = NE -]

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A: both of the series is divergent. see my solution below

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