ANSWER a and b

2+e-jo - jo Problem 1: DTFT analytically known Consider the signal x[n] whose DTFT is X(ej) 1-0.6e-> a) Using Matlab, create a neatly-labeled figure using subplot whose upper plot is the magnitude of X(el) and the lower plot is the phase angle of X(ej) for frequencies -4A SO S 41. Is the DTFT a period function of o? If so, what is the period? Explain the type of symmetry exhibited by each of the two subplots. b) Challenge: Analytically determine x[n] by computing the inverse DTFT using tables