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 x2(n)?
A. (x(n)-x*(n))/2
B. (x(n)+x*(n))/2
C. (x(n)+x*(n))/2j
D. (x(n)-x*(n))/2j
Answer:A
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 x2(n)?
A. (x(n)-x*(n))/2 B. (x(n)+x*(n))/2 C. (x(n)+x*(n))/2j D. (x(n)-x*(n))/2j
Explanation: Given x(n)=x1(n)+jx2(n)