Determine whether the discrete signals are periodic

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Reference no: EM13286672

Determine whether the discrete signals below are periodic. If the signal is periodic, determine the number of samples per period.
(a) x[n]=cos(πn)
(b) x[n]= -3sin(.01πn)
(c) x[n]= 1+cos((πn)/2)

Reference no: EM13286672

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