jagdeep585 jagdeep585

15-03-2024
Engineering

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Which of the following discrete-time signals are periodic? If the signal is periodic, write down its fundamental period.
(a) x[n]=cos(n)
(b) x[n]=cos(n√5 )
(c) x[n]=cos(n√5)+cos(n√2 )
(d) x[n]=cos(πn)+cos( 3π/2 n)

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