Question: Let x [ n ] = 0 . 8 n u [ n ] + ( - 0 . 8 ) n u [ n

Let x[n]=0.8nu[n]+(-0.8)nu[n].
(a) Determine the DTFT of x[n].
(b) Let G[k]=x(ej2k10),k=0,1,dots9. Determin g[n] without computing IDFT.
Let x [ n ] = 0 . 8 n u [ n ] + ( - 0 . 8 ) n u [

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