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(a) Determine whether or not the following signal is periodic. If it is periodic, determine its fundamental period: 4n ,5T jn x(n) =e7 +

(a) Determine whether or not the following signal is periodic. If it is periodic, determine its fundamental period: 4n ,5T jn x(n) =e7" + e 9" (b) Find the input-output relation of the feedback system x[n] Unit delay y[n] [4 Marks] [2 Marks]

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