GATE Electronics and Communications (EC) 2016 Shift 1 Solved Paper

Question : 18 of 65

Marks: +1, -0

Consider the sequence

x[n] = a^{n}u[n] + b^{n}u[n]

, where

u[n]

denotes the unit-step sequence and

0 < |.a|. < |.b|. < 1

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

u[n]

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