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Signals and systems electrical engineering miscellaneous
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Signals and systems electrical engineering miscellaneous
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Signals and Systems
Signals and systems electrical engineering miscellaneous
Given Z-transform,
X(z) =
3z² -
1
z
, |z| > 4
4
z² - 16
The time signal x(t) will be
49
(-4)
n
+
47
(-4)
n
u[n]
32
32
49
4
n
+
47
4
n
u[n]
32
32
49
(-4)
n
u[-n] +
47
4
n
u[n]
32
32
49
4
n
u[n] +
47
(-4)
n
u[-n]
32
32
Correct Option:
A
X(z) =
3z² -
1
z
-1
=
49
=
47
4
32
32
z² - 16
1 + 4z
-1
1 - 4z
-1
⇒ x[n] =
49
(-4)
n
+
47
4
n
u[n]
32
32
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