# Question of the Day 28-01-2020

Question of the Day
GATE 2016   EC   Question No. 241
The ROC (region of convergence) of the z-transform of a discrete-time signal is represented by the shaded region in the z-plane. If the signal $x\left[n\right]={\left(2.0\right)}^{\left|n\right|},-\infty , then the ROC of its z-transform is represented by

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