3)If X(z)= 2²-0-5z z²+0-75z+ b) X(n) = [4"-3"]u(n) c)) X(n) = [4¹-3"]u(n) . † 4) If X(2)(z-30)(2-40) the IZT-a) X(n)=(30)"u(n) + (40)"u(n) b) X(n)=(30)u(n)-(40)"u(n) c) X(n) = 31 (30)"u(n) + +(40) "u(n) 10 10 10 10 the IZT-a) X(n) = [4"-3"]u(n) .

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.4: Values Of The Trigonometric Functions
Problem 23E
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Question
2) If X(n) = 10 sin(0.2mn) u(n), then Z-transform -
7-072
z
7-072
a)
b)
2²-1-4142+7
2²-1-4142+1
2²-1-4142+1
z²-0-5z
3)If X(z)=
the IZT =
a) X(n) = [4(¯)" − 3(⇒)"]u(n)
1
z²+0-75z+
b) X(n) = [4" - 3)"]u(n)
c) ) X(n) = [4"-3"]u(n)
4) If X(z)=
z(z-1)
(z-30)(z-40)
the IZT-a) X (n) = (30) "u(n) + (40)"u(n)
.
31
b) X(n) = (30)"u(n)-(40)¹u(n) c) X(n) = 3¹ (30)"u(n) + (40)”u(n)
10
10
10
10
Transcribed Image Text:2) If X(n) = 10 sin(0.2mn) u(n), then Z-transform - 7-072 z 7-072 a) b) 2²-1-4142+7 2²-1-4142+1 2²-1-4142+1 z²-0-5z 3)If X(z)= the IZT = a) X(n) = [4(¯)" − 3(⇒)"]u(n) 1 z²+0-75z+ b) X(n) = [4" - 3)"]u(n) c) ) X(n) = [4"-3"]u(n) 4) If X(z)= z(z-1) (z-30)(z-40) the IZT-a) X (n) = (30) "u(n) + (40)"u(n) . 31 b) X(n) = (30)"u(n)-(40)¹u(n) c) X(n) = 3¹ (30)"u(n) + (40)”u(n) 10 10 10 10
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