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Comment on the causality of the discrete time system: y[n] = x[n+3].

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in Signals and Systems by (1.2m points)
Comment on the causality of the discrete time system: y[n] = x[n+3].

(a) Causal

(b) Non Causal

(c) Anti Causal

(d) None of the mentioned

I got this question in homework.

My question is from Discrete-Time Systems in the Time-Domain topic in section Signals and Systems Basics of Signals and Systems

1 Answer

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by (42.1k points)
Correct option is (c) Anti Causal

To explain I would say: The output always depends on the input at a time in the future, rendering it anti-causal.

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