

MCQOPTIONS
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1. |
If \({\rm{x}}\left[ {\rm{n}} \right] = {\left( {\frac{1}{3}} \right)^{\left| {\rm{n}} \right|}}-{(\frac{1}{2})}^n \ u(n) \) then, the region of convergence of its z transform in the z-plane will be |
A. | \( \frac{1}{3}<\left| z \right| < 3\) |
B. | \( \frac{1}{2}<\left| z \right| < 3\) |
C. | \( \frac{1}{3}<\left| z \right| < \frac{1}{2}\) |
D. | \( \frac{1}{3}<\left| z \right| \) |
Answer» C. \( \frac{1}{3}<\left| z \right| < \frac{1}{2}\) | |