Let x [n] = (−\frac{1}{9}) ^{n}u [n] − (−\frac{1}{3}) ^{n}u [−n−1]. The Region of convergence (ROC) of the z-transform

Correct Answer is : is 13>|z|>19

is \frac{1}{3} > |z{{}/{}|} > \frac{1}{9}

GATE Electronics and Communications (EC) 2014 Shift 1 Solved Paper

Question : 53 of 65

Marks: +1, -0

Let

x [n] = (−\;{1}/{9}) ^{n}u [n] − (−\;{1}/{3}) ^{n}u [−n−1]

. The Region of convergence (ROC) of the z-transform

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