1.

The z – transform of a sequence x(n) having support interval 0 ≤ n ≤ N is:

A. \(X\left( z \right) = \mathop \sum \nolimits_{n = 0}^N x\left( n \right){z^n}\)
B. \(X\left( z \right) = \mathop \sum \nolimits_{n = - \infty }^\infty x\left( n \right){z^n}\)
C. \(X\left( z \right) = \mathop \sum \nolimits_{n = - \infty }^\infty x\left( n \right){z^{ - n}}\)
D. \(X\left( z \right) = \mathop \sum \nolimits_{n = 0}^N x\left( n \right){z^{ - n}}\)
Answer» E.


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