Question: For a sequence x [n] that is zero for n < 0, use Eq. (3.2) to show that lim z X (z) = x [0].

For a sequence x [n] that is zero for n < 0, use Eq. (3.2) to show that lim z→∞ X (z) = x [0]. What is the corresponding theorem if the sequence is zero for n > 0?

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