

MCQOPTIONS
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1. |
Let u|n| be the unit-step signal and \(x\left[ n \right] = {\left( {\frac{1}{2}} \right)^n}u\left[ n \right] + {\left( { - \frac{1}{3}} \right)^n}u\left[ n \right]\). The region of convergence of z-transform of x[n] is |
A. | \(\left| z \right| > \frac{1}{3}\) |
B. | \(\frac{1}{3} < \left| z \right| < \frac{1}{2}\) |
C. | \(\left| z \right| > \frac{1}{2}\) |
D. | \(\left| z \right| < \frac{1}{2}\) |
Answer» D. \(\left| z \right| < \frac{1}{2}\) | |