Electronics and Communication Engineering - Signals and Systems - Discussion
Discussion Forum : Signals and Systems - Section 4 (Q.No. 31)
31.
If 
then system is
then system isAnswer: Option
Explanation:
ROC will be |z| > 0.4 and |z| > 2
Hence ROC ⇒ |z| > 0.4, which is exterior of circle of radius 0.4
Hence causal if ROC is |z| > 0.4 then non-causal.
Discussion:
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