z(z + 1) (z – 1)3 n u(n) z|>1 a u(n) z| > la| Z-a 7 e-na u(n) z|>e-a (2 - ea) az

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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H.W. Prove the z-transforms for common sequences summarized in Table 1
except the last sequence (15).
Table 1
Table of z-Transform Pairs
Region of
Convergence
Line No.
x(n), n 20
z-Transform X(2)
z(z + 1)
(z - 1)°
n u(n)
z|>1
6
a u(n)
z| > la|
Z-a
7
e-na u(n)
z|>e-a
(z -e-a
8
na" u(n)
az
z|> la|
(z - a)
z sin(a)
z2 – 2z cos(a) +1
9.
sin(an)u(n)
z|>1
zz - cos(a)]
z2 - 2z cos(a) + 1
10
cos(an)u(n)
z| >1
[a sin(b)z
z2 - [2a cos(b)]z +a?
z[z- a cos(b)]
z2 - [2a cos(b)z +a-2
11
a" sin(bn)u(n)
z|> la|
12
a" cos(bn)u(n)
z| > la|
[e-a sin(b)]z
z2 - [2e-a cos(b)]z +e-2a
13
e-an sin(bn)u(n)
z|>e-a
z[z -ecos(b)I
z2 - (2e-a cos(b)]z +e-2a
14
e-an cos(bn)u(n)
Z|>e-a
Az
A'Z
2|A||P|"cos(n8 + g)u(n)
where P and A are complex
constants defined by
P = |P|L0, A = |A|L
15
z-P
Z- P
Transcribed Image Text:H.W. Prove the z-transforms for common sequences summarized in Table 1 except the last sequence (15). Table 1 Table of z-Transform Pairs Region of Convergence Line No. x(n), n 20 z-Transform X(2) z(z + 1) (z - 1)° n u(n) z|>1 6 a u(n) z| > la| Z-a 7 e-na u(n) z|>e-a (z -e-a 8 na" u(n) az z|> la| (z - a) z sin(a) z2 – 2z cos(a) +1 9. sin(an)u(n) z|>1 zz - cos(a)] z2 - 2z cos(a) + 1 10 cos(an)u(n) z| >1 [a sin(b)z z2 - [2a cos(b)]z +a? z[z- a cos(b)] z2 - [2a cos(b)z +a-2 11 a" sin(bn)u(n) z|> la| 12 a" cos(bn)u(n) z| > la| [e-a sin(b)]z z2 - [2e-a cos(b)]z +e-2a 13 e-an sin(bn)u(n) z|>e-a z[z -ecos(b)I z2 - (2e-a cos(b)]z +e-2a 14 e-an cos(bn)u(n) Z|>e-a Az A'Z 2|A||P|"cos(n8 + g)u(n) where P and A are complex constants defined by P = |P|L0, A = |A|L 15 z-P Z- P
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