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Plot the spectrum for the following signals: a) f(t) = cos(10t) b) f(t) = cos² (10t) c) f(t) = cos³ (10t) d) Suppose we pass the signal cos³ (10t) through an ideal lowpass filter with cutoff frequency 20rad/sec. What is the resulting signal?

Plot the spectrum for the following signals: a) f(t) = cos(10t) b) f(t) = cos² (10t) c) f(t) = cos³ (10t) d) Suppose we pass the signal cos³ (10t) through an ideal lowpass filter with cutoff frequency 20rad/sec. What is the resulting signal?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Plot the spectrum for the following signals: (a) f(t) = cos(10t) (b) f(t) = cos² (10t) (c) f(t) = cos³ (10t) (d) Suppose we pass the signal cos³ (10t) through an ideal lowpass filter with cutoff frequency 20rad/sec. What is the resulting signal?
Transcribed Image Text:Plot the spectrum for the following signals: (a) f(t) = cos(10t) (b) f(t) = cos² (10t) (c) f(t) = cos³ (10t) (d) Suppose we pass the signal cos³ (10t) through an ideal lowpass filter with cutoff frequency 20rad/sec. What is the resulting signal?
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