x(п) %3D п а" и(-n) 5. =

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 91E
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please solve the z-transform for 5, 6 in similar way to the solved one above if that possible

4.
х(п) %3D п а" и(п)
1
Z{a"u(n)} =
ROC : |z| > |a|
1 - az-1
d
And Z{n x(n)} = -z
dz
X(z) , differentiationin z – domain property
d
1
Zin a"u(п)}
here x(n) = a"u(n)
= -Z
dz 1- az-1
|
d
dz
(1 – az-1)2
d
(1 – az"
= -z
-1) 음1-1.
(1 – az-1)
|
dz
0 + a(-1)z-2
= -z
(1 – az-1)2
a z-1
ROC : |z| > |a|
(1 – az-1)2 '
a z-1
Thus
па" и(п)
ROC : |z| > ]a|
|(1-az-1)2
x (п) %3D п а" и(-п)
x(п) %3D п (п + 1) и (п)
5.
6.
||
Transcribed Image Text:4. х(п) %3D п а" и(п) 1 Z{a"u(n)} = ROC : |z| > |a| 1 - az-1 d And Z{n x(n)} = -z dz X(z) , differentiationin z – domain property d 1 Zin a"u(п)} here x(n) = a"u(n) = -Z dz 1- az-1 | d dz (1 – az-1)2 d (1 – az" = -z -1) 음1-1. (1 – az-1) | dz 0 + a(-1)z-2 = -z (1 – az-1)2 a z-1 ROC : |z| > |a| (1 – az-1)2 ' a z-1 Thus па" и(п) ROC : |z| > ]a| |(1-az-1)2 x (п) %3D п а" и(-п) x(п) %3D п (п + 1) и (п) 5. 6. ||
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