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1. |
If x1(n) and x2(n) are two real valued sequences of length N, and let x(n) be a complex valued sequence defined as x(n)=x1(n)+jx2(n), 0≤n≤N-1, then what is the value of x1(n)? |
A. | \(\frac{x(n)-x^* (n)}{2}\) |
B. | \(\frac{x(n)+x^* (n)}{2}\) |
C. | \(\frac{x(n)-x^* (n)}{2j}\) |
D. | \(\frac{x(n)+x^* (n)}{2j}\) |
Answer» C. \(\frac{x(n)-x^* (n)}{2j}\) | |