hey guys - just a question regarding a systems and signals course:(adsbygoogle = window.adsbygoogle || []).push({});

if i've got two disctrete signals: x1[n] and x2[n]

if i know both signals are periodic (individually) how do i prove the sum of these signals is periodic?

requirement for periodicty (one signal): x[n+N] = x[n]

where n and N are integers - remeber - discrete signals!!

thanks!!

John

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# Prove the sum of 2 signals is periodic?

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