Search for question
Question

4. A signal composed of sinusoids is given by: x(t) = 8 cos (400лt +/4) + 5 cos (600лt-/3)-2 cos (800лt) a) Sketch the complex spectrum of this signal. Indicate the

"complex size" of each frequency component. b) Sketch separate plots of the magnitude and phase of the complex spectrum plotted in (a). c) Is the function x(t) periodic? If so, what is the period?

Fig: 1