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ii) Find the energy in the signal over the period n=0 to n=9.

ii) Find the energy in the signal over the period n=0 to n=9.

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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qustion ii please anyways 

Signal and informations lecture name

a) A discrete time signal is described by the formula: x[n] = cos(π.n) for all negative and positive integer values of 'n'. i) Sketch the signal from n= -2 to n=2 and state whether it is even or odd. ii) Find the energy in the signal over the period n=0 to n=9. iii) If the signal x[n] = cos(π.n) is multiplied by the signal z[n] = sin(π.n). What is the resultant sequence y[n] = x[n].z[n]? (Evaluate y[n] for the values n=0 to n=4 only.)
Transcribed Image Text:a) A discrete time signal is described by the formula: x[n] = cos(π.n) for all negative and positive integer values of 'n'. i) Sketch the signal from n= -2 to n=2 and state whether it is even or odd. ii) Find the energy in the signal over the period n=0 to n=9. iii) If the signal x[n] = cos(π.n) is multiplied by the signal z[n] = sin(π.n). What is the resultant sequence y[n] = x[n].z[n]? (Evaluate y[n] for the values n=0 to n=4 only.)
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