Two sequences x1 (n) and x2 (n) are related by x2 (n) = x1 (- n). In the z- domain, their ROC’s are(a) The same(b) Reciprocal of each other(c) Negative of each other(d) Complements of each otherThe question was asked by my college professor while I was bunking the class.The question is from The Z-Transform topic in section Digital Control Systems of Control Systems

Two sequences x1 (n) and x2 (n) are related by x2 (n) = x1 (- n). In t

1.	Two sequences x1 (n) and x2 (n) are related by x2 (n) = x1 (- n). In the z- domain, their ROC’s are(a) The same(b) Reciprocal of each other(c) Negative of each other(d) Complements of each otherThe question was asked by my college professor while I was bunking the class.The question is from The Z-Transform topic in section Digital Control Systems of Control Systems
Answer» The correct OPTION is (B) Reciprocal of each other To explain: x1(N) is the signal in the discrete domain and X1(z) is the signal in the z domain, ROC Rx z Reciprocals x2(n) = x1(-n) X1(1/z), RoC 1/ R

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