3) Determine whether or not each of the following continuous-time signals is periodic. If the signal is periodic, determine its fundamental period. a) x(t) = 3 cos (4t - ) b) x(t) = e(t-1) c) x(t) = [cos (2t)]² d) x(t) = - e-(2t-n)u(2t - n)

3) Determine whether or not each of the following continuous-time signals is periodic. If the signal is periodic, determine its fundamental period. a) x(t) = 3 cos (4t - ) b) x(t) = e(t-1) c) x(t) = [cos (2t)]² d) x(t) = - e-(2t-n)u(2t - n)

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

3) Determine whether or not each of the following continuous-time signals is periodic. If the signal is
periodic, determine its fundamental period.
a) x(t) = 3 cos(4t-5)
b) x(t) = ei(πt-1)
c) x(t) = [cos(2t — ™)]²
d) x(t) = Σn=-∞
3
e-
3
(2t-n) u (2t − n)

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