Question: h[n] is causal, real-valued sequence with h[0] nonzero and positive. The magnitude squared of the frequency response of h[n] is given by (a) Determine a

h[n] is causal, real-valued sequence with h[0] nonzero and positive. The magnitude squared of the frequency response of h[n] is given by

|Hel")f = - cos(). 10

(a) Determine a choice for h[n].

(b) Is your answer to part (b) unique? If so, explain why. If not, determine a second, distinct choice for h[n] satisfying the givenconditions.

|Hel")f = - cos(). 10

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