How did he get the value inside the line r(k) = ku(k) Z(u(n)) = |Z(ku(k)) = -z () z(Ru(k) 1 1-z-1 z(Kulk) =-() z(k*u(h) = – 2² dz2 z(z+1) (z-1)°

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.1: Equations
Problem 75E
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How did he get the
value inside the line
r(k) = ku(k)
Z(u(n)) =
|Z(ku(8)) = -2 (금)
z(Ru(k)
z(k’u(k))
%3D
1
1-z-1
dz
=-()
– z²
dz2
z(z+1)
(z-1)°
Transcribed Image Text:How did he get the value inside the line r(k) = ku(k) Z(u(n)) = |Z(ku(8)) = -2 (금) z(Ru(k) z(k’u(k)) %3D 1 1-z-1 dz =-() – z² dz2 z(z+1) (z-1)°
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