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5. A DT system having input x[n] and output yIn] is described by the difference equation J?nJ 0.8 IJln 2] x[n]-0.75x(n-l]. Assuming that x[n]-n(0.75) u[n], use transfomn methods to determine the output y[n]. The property of DTFTs glnl Lm?G(e?) then > / G(er) should help in obtaining the DTFT of the input. (20 pts.) ds2

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y Go DIFT DTF「 G Pvern ppply DTFT Ye. yCeJo Jw 2jLw{-: O·75 én_ o.sieaito.603 s-알 Lose

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