x(t) = 84+ 10 (100+)+202250) (a) Using Euler's relation, the signal x(t) defined above can be expressed as a sum of complex exponential signals using the finite Fourier synthesis summation (3.37) Determine values for fr. N. and allthe complex amplitudes,aq. It is not necessary to evaluate any integrals to obtain a (b) Is the signal x(t) periodic? If so, what is the fundamental period? (c) Plot the spectrum of this signal versus fin Hz. P-3.20 A real signal x(t) has the two-sided spectrum shown in Fig. P-3.20. The frequency axis has units of rad/s. 0.4% 06-14 CO 4G CC 10 90% Figure P-330