Question: 3.103 Use MATLAB's fft command to repeat lem 3.48. Prob- ADDITIONAL PROBLEMS 3.48 Use the defining equation for the DTFS coefficients to evaluate the

3.103 Use MATLAB's fft command to repeat lem 3.48. Prob- ADDITIONAL PROBLEMS 3.48 Use the defining equation for the DTFS coefficients to evaluate the DTFS

3.103 Use MATLAB's fft command to repeat lem 3.48. Prob- ADDITIONAL PROBLEMS 3.48 Use the defining equation for the DTFS coefficients to evaluate the DTFS representation of the following signals: (a) x[n] = cos(n + ) (b) x[n] = 2 sin(n) + cos(n) + 1 = evaporate -6 -4 -2 (c) x[n] = m=-(-1) (8[n 2m] + 8[n + 3m]) 0 (d) x[n] as depicted in Figure P3.48(a). (e) x[n] as depicted in Figure P3.48(b). x[n] Happ 10 x[n] (b) 2 246

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