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If x left( n right) = left begin array l left(...

This question belongs to Electronics And Communications Engineering Signal Processing
Signal Processing
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If \[x\left( n \right) = \left\{ \begin{array}{l} {\left( {\frac{1}{2}} \right)^n};\,0 \le n \le \left( {N - 1} \right)\\ 0;\,{\rm{otherwise}} \end{array} \right.\]      then x(z) is equal to

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Correct Answer: Option D
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