Without finding the inverse z-transform, identify which of the z-transforms could be the transform of a causal signal? Clearly state your reason for your answer: (a) (1-z-1)2 (1-0.5z-1) (b) E-1)2 (z-0.5)2 (z-0.25)® (z-0.5)5 (c) (d) (z-0.25)5 (z-0.5)6 need help to knowing which one can be transform of a causal signal.thanks

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Without finding the inverse z-transform,
identify which of the z-transforms could
be the transform of a causal signal?
Clearly state your reason for your
answer:
(1-z-1)2
(1–0.5z-1)
(z-1)²
(z-0.5)2
(z-0.25)®
(z-0.5)5
(a)
(b)
(c)
(d)
(z–0.25)5
(z-0.5)6
need help to knowing which one can be
transform of a causal signal.thanks
Transcribed Image Text:Without finding the inverse z-transform, identify which of the z-transforms could be the transform of a causal signal? Clearly state your reason for your answer: (1-z-1)2 (1–0.5z-1) (z-1)² (z-0.5)2 (z-0.25)® (z-0.5)5 (a) (b) (c) (d) (z–0.25)5 (z-0.5)6 need help to knowing which one can be transform of a causal signal.thanks
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