The Z-Transform of x (n) = e-3(n-4) cos(0.17 (n-4))u (n- 4) Where u(n-4) = 1 for n 24 while u(n-4) = 0 for n < 4 %3D (z - 0.0474) X (z) %3D z2 – 0.0948z+ 0.0025 X (z) = z – z (n – 4) 3 22 – 0.1z X (z) = %3D z3 – 2z2 + 0.0025 -

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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The Z-Transform of
x (n) = e
-3(n-4)
cos(0.17 (n – 4))u (n- 4)
Where u(n-4) =1 for n >4
while u(n-4) = 0 for n < 4
z3 (z – 0.0474)
X (z) =
z2 - 0.0948z + 0.0025
X (z) = z – z (n - 4) O
.3
%3D
22 – 0.1z
X (z) =
%3D
z3 – 2z2 + 0.0025
Transcribed Image Text:The Z-Transform of x (n) = e -3(n-4) cos(0.17 (n – 4))u (n- 4) Where u(n-4) =1 for n >4 while u(n-4) = 0 for n < 4 z3 (z – 0.0474) X (z) = z2 - 0.0948z + 0.0025 X (z) = z – z (n - 4) O .3 %3D 22 – 0.1z X (z) = %3D z3 – 2z2 + 0.0025
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