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A continuous-time signal x(t) is sampled with a sampling frequency f=6 Hz. The resulting discrete-time signal x[n]is given by x[n]=7cos The signal x[n] is: O A. Periodic with period 2 samples O B. Periodic with period 12 seconds O C. Periodic with period 6 samples O D. Periodic with period 2 seconds

A continuous-time signal x(t) is sampled with a sampling frequency f=6 Hz. The resulting discrete-time signal x[n]is given by x[n]=7cos The signal x[n] is: O A. Periodic with period 2 samples O B. Periodic with period 12 seconds O C. Periodic with period 6 samples O D. Periodic with period 2 seconds

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A continuous-time signal x(f) is sampled with a sampling frequency f=6 Hz. The resulting discrete-time signal x[n]is given by x[n]=7cos : . The signal x[n] is: O A. Periodic with period 2 samples O B. Periodic with period 12 seconds OC. Periodic with period 6 samples O D. Periodic with period 2 seconds The system with an input x(f) and an output y(f) given by y(t) = etx(t) is: O A. Linear, time-invariant, and causal. O B. None of the others. OC. Linear, time-varying, and causal. O D. Linear, time-invariant, and non-causal.
Transcribed Image Text:A continuous-time signal x(f) is sampled with a sampling frequency f=6 Hz. The resulting discrete-time signal x[n]is given by x[n]=7cos : . The signal x[n] is: O A. Periodic with period 2 samples O B. Periodic with period 12 seconds OC. Periodic with period 6 samples O D. Periodic with period 2 seconds The system with an input x(f) and an output y(f) given by y(t) = etx(t) is: O A. Linear, time-invariant, and causal. O B. None of the others. OC. Linear, time-varying, and causal. O D. Linear, time-invariant, and non-causal.
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