Signals and Systems - Section 1 (7)

Directions to Solve

Signals and Systems - Section 1

49. 

Which one most appropriate dynamic system?
A. y(n) + y(n - 1) + y(n + 1)
B. y(n) + y(n - 1)
C. y(n) = x(n)
D. y(n) + y(n - 1) + y(n + 3) = 0

Answer: Option A

Explanation:

Because present output of y(n) depend upon past y(n - 1) and future y(n + 1).

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50. 

What about the stability of system in 19-326
A. system is stable
B. unstable
C. stable at 0.4
D. cant say

Answer: Option A

Explanation:

ROC include the unit circle hence it is stable.

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