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What are the values of z for which the value of X(z)=∞?

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in Digital Signal Processing by (829k points)
What are the values of z for which the value of X(z)=∞?

(a) Poles

(b) Zeros

(c) Solutions

(d) None of the mentioned

The question was asked in examination.

My question is based upon Rational Z Transform topic in portion Z Transform and its Application – Analysis of the LTI Systems of Digital Signal Processing

1 Answer

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Best answer
The correct choice is (a) Poles

Best explanation: For a rational z-transform X(z) to be infinity, the denominator of X(z) is zero and the solutions of the denominator are called as ‘poles’ of X(z).

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