Question: A DT LTI system has the following impulse response: - - - h(n) = 0.58(n) + sin ( (n 1))u(7 n) u(n 1). (a)

A DT LTI system has the following impulse response: - - - h(n) = 0.58(n) + sin ( (n 1))u(7 n) u(n 1). (a) Find an expression for the system's frequency response H(ejw), and sketch the magnitude and phase responses over the range to . - (b) An input x(n) 10 is fed into the system. Find the output y(n). (c) An input x(n) = cos (En) is fed into the system. Find the output y(n). 2

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