Problem 2:
(a) Find the exponential Fourier series coefficients (D0, Dn) for the periodic signal x(t) shown in the figure below.
(b) A periodic signal y(t) has the following compact Fourier series:
y(t) = 10 + Σ (n=1 to ∞) (16/n^2) cos(5nt + π/2n)
(i) Sketch the one-sided magnitude and phase spectra (cn, θn) up to ω = 20.
(ii) Find the exponential Fourier series coefficients (D0, Dn).