1. (25 points) A continuous-time periodic signal x (t) is real valued and has a fundamental period T = 8. The nonzero Fourier series coefficients for x(t) are Express x(t) in the form a₁ = a1 =1, a3 = a*3 = 4j. x(t) = cos(x + x) k=0 2. (25 points) A discrete-time periodic signal x[n] is real valued and has a fundamental period N=5. The nonzero Fourier coefficients for x[n] are Express x[n] in the form a =1, a2 =a2 =ej/4, a₁ = a² = 2/3 x[n] = A + Asin (w+x)