Question2. A periodic function of period 27 is defined for 0 ≤ x ≤ 2π by (0 ≤ x ≤ 1/n) 글자 ( n < x≤n) == π (π< x < ²/n) |x − 2π (²n≤ x ≤ 2n) f(x) = X Sketch f(x) for (-2π < t < 4n) and find the Fourier series in expanded form. Also express the Fourier series in general form.

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