1.

The region of converage of z-transform of sequence must be

A. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/21-362-1.png">
B. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/21-362-2.png">
C. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/21-362-3.png">
D. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/21-362-4.png">
Answer» D. <img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/21-362-4.png">


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