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Determine whether the following signs are periodic. If they are periodic, find the fundamental period and fundamental frequency. x(t)=6ej6t+jej9tx(t)=e(4+j6)tx(t)=[cos(3t)]2x[n]=3ejmnx[n]=cos(100n+4)x[n]=2n
Determine whether the following signs are periodic. If they are periodic, find the fundamental period and fundamental frequency. 
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