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1. |
If x(n) is an imaginary sequence, then the z-transform of the real part of the sequence is? |
A. | ( frac{1}{2} )[X(z)+X*(z*)] |
B. | ( frac{1}{2} )[X(z)-X*(z*)] |
C. | ( frac{1}{2} )[X(-z)-X*(z*)] |
D. | ( frac{1}{2} )[X(-z)+X*(z*)] |
Answer» B. ( frac{1}{2} )[X(z)-X*(z*)] | |