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 other
Answer:B
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 other
Explanation: x1(n) is the signal in the discrete domain and X1(z) is the signal in the z domain, RoC Rx