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Q:

Comment on the stability of the following system, y[n] = n*x[n-1].

A) Stable B) Unstable
C) Partially Stable D) All of the mentioned
 
Answer & Explanation Answer: B) Unstable

Explanation: Even if we have a bounded input as n tends to inf, we will have an unbounded output. Hence, the system resolves to be an unstable one.

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