If x1[n] x1(z) with ROC = R1 and x2[n] x2(z) with ROC = R2 then ROC – McqOptions

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1.	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 ‚Üí Region of convergence and x1[n] and x2[n] are causal).
A.	R1 ‚à© R2
B.	R1 ‚à™ R2
C.	(R1 ‚à™ R2) ‚à© (R1)
D.	(R1 ‚à© R2) ‚à™ (R1)
Answer» B. R1 ‚à™ R2

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