Determine whether or not each of the following signals is periodic. If a signal is periodic,...

Transcribed Image Text:

Determine whether or not each of the following signals is periodic. If a signal is periodic, determine its fundamental period. n (a) x[n] = ei-π) (b) x[n] = cos (1) 2 COS (1) 4 πη. (c) x[n] = cos() + sin() - 2 cos (1) 4 8 Determine whether or not each of the following signals is periodic. If a signal is periodic, determine its fundamental period. n (a) x[n] = ei-π) (b) x[n] = cos (1) 2 COS (1) 4 πη. (c) x[n] = cos() + sin() - 2 cos (1) 4 8