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

Question

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

Examsnet · Accepted Answer

Correct Answer is : is ‌13>|z‌‌|>‌19

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