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1-Take the following system with the input x, and output y, y(n) = x(n) + 2x(n − 1) + 2x(n − 2) + x(n − 3). Find its output,

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Answer #1

y yom) = a(+2am-1 +22(n2)+acm-3) Applying Z-transform on both sides 462) = x(2) + 22x12)+22?x(2)+?x(2) Y(2) = H(2)= 1t2Z+2=e y(n)= 663 (0)n = 6 At Wo = 773 Meub)= 1+z2+1% +2€ 2175 -3,17 - 1+=[+-69}=(1-19)+(-1) Hey b) = =j213 = 215 21 yen) = 253 64(output yo) = 13 Q3 (In - 3). when woah -j21 -j 317 Hlejt) = 1to jt = 1+2 (-1)+2 (1) + (-) - Heur) =0 Output ym) = 0. Cos(10)

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