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If the region of convergence of x1 n + x2 n...

This question belongs to Electronics And Communications Engineering Signal Processing
Signal Processing
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If the region of convergence of x1[n] + x2[n] is $${1 \over 3} < \left| z \right| < {2 \over 3},$$   then the region of convergence of x1[n] - x2[n] includes

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Correct Answer: Option D
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