Question: 5. (a) Determine whether signal x(t) = -1.2- 3 sin (2.1t) + 2 cos (2.8t) is periodic? (b) Determine whether signal x[n] = sin(10***n/3] is

5. (a) Determine whether signal x(t) = -1.2- 3 sin (2.1t) + 2 cos (2.8t) is periodic? (b) Determine whether signal x[n] = sin(10***n/3] is periodic? If so, what is the fundamental period? 112) (c) Find the Fourier transform for signal x(t) = e ws

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