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1. |
What is the z-transform of the signal x(n)=(0.5)nu(n)? |
A. | \(\frac{1}{1-0.5z^{-1}};ROC |z|>0.5\) |
B. | \(\frac{1}{1-0.5z^{-1}};ROC |z|<0.5\) |
C. | \(\frac{1}{1+0.5z^{-1}};ROC |z|>0.5\) |
D. | \(\frac{1}{1+0.5z^{-1}};ROC |z|<0.5\) |
Answer» B. \(\frac{1}{1-0.5z^{-1}};ROC |z|<0.5\) | |