Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 1 (Q.No. 28)
28.
If x1[n] 
x1(z) with ROC = R1 and x2[n] x2(z) with ROC = R2 then ROC for x1[n] + x2[n] will be __________ (where Ri → Region of convergence and x1[n] and x2[n] are causal).
x1(z) with ROC = R1 and x2[n] x2(z) with ROC = R2 then ROC for x1[n] + x2[n] will be __________ (where Ri → Region of convergence and x1[n] and x2[n] are causal).Answer: Option
Explanation:
R1 ∩ R2, Suppose R1 for x1(n) be
Then ROC for x1(n) + x2(n)
R1 ∩ R2 (R1 < R2)
Then ROC for x1(n) + x2(n)
R1 ∩ R2(R1 < R2)
Discussion:
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