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25-09-2021 Signals & Systems

Q. Does the following discrete system have the parameter of memory, y[n] = x[n-1] + x[n] ?

A. Yes
B. No

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Dapzoi Verified
Commented on 2021-09-25 13:08:06 (IST)
Answer: A

Explanation: y[n] depends upon x[n-1], i.e at the earlier time instant, thus forcing the system to have memory.