Then the DTFT c

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter9: Components For Electric Motors
Section: Chapter Questions
Problem 14RQ
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Given x[n] a" u[n]
a" u[n]
=
X(e) = 1-ae-J
Then the DTFT of x[n] = (2-"-3")u[n] is
Select one:
○ X(e)=1-1-tem
O
O
X(ej) =
=
X(ejo)
=
-Joo
X(eo) =
=
1-e-
1
1
1-2e-jo 1-3e-jo
O None of the mentioned
O
-
1
1-e-Jos
-
1-3e-jo
Transcribed Image Text:Given x[n] a" u[n] a" u[n] = X(e) = 1-ae-J Then the DTFT of x[n] = (2-"-3")u[n] is Select one: ○ X(e)=1-1-tem O O X(ej) = = X(ejo) = -Joo X(eo) = = 1-e- 1 1 1-2e-jo 1-3e-jo O None of the mentioned O - 1 1-e-Jos - 1-3e-jo
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