Question

1. Check whether the following signal are periodic or aperiodic and find their time period
if it is periodic:
(i). x(t) = Cos 8πt + Cos 12πt
(ii). x(t) = Cos(5n)
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Answer 1

Step-by-step explanation:

(i). x(t) = Cos 8πt + Cos 12πt

(ii). x(t) = Cos(5n)

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