Signals & Systems Test Questions

Q.  Which among the following are the stable discrete time systems?

1. y(n) = x(4n)
2. y(n) = x(-n)
3. y(n) = ax(n) + 8
4. y(n) = cos x(n)


a. 1 & 3
b. 2 & 4
c. 1, 3 & 4
d. 1, 2, 3 & 4


ANSWER: See Answer
 
No explanation is available for this question!