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Question

The R.O.C. of impulse function is _________

a.

The entire z-plane

b.

Interior to the unit circle |z|=1

c.

Exterior to the unit circle |z|=1

d.

Between the unit circle |z|=1 and |z|=∞

Answer: (a).The entire z-plane

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Q. The R.O.C. of impulse function is _________