If X(k) is the DFT of x(n) which is defined as x(n)=x1(n)+jx2(n), 0≤ n≤ N-1, then what is the DFT of x1(n)?

$\frac{1}{2} [X*(k)-X*(N-k)]$

$\frac{1}{2} [X*(k)+X*(N-k)]$

$\frac{1}{2} [X*(k)-X*(N-k)]$

$\frac{1}{2j} [X*(k)-X*(N-k)]$

$\frac{1}{2j} [X*(k)+X*(N-k)]$

If X(k) is the DFT of x(n) which is defined as x(n)=x1(n)+jx2(n), 0�

1.	If X(k) is the DFT of x(n) which is defined as x(n)=x1(n)+jx2(n), 0≤ n≤ N-1, then what is the DFT of x1(n)?
A.	$\frac{1}{2} [X(k)+X(N-k)]$
B.	$\frac{1}{2} [X(k)-X(N-k)]$
C.	$\frac{1}{2j} [X(k)-X(N-k)]$
D.	$\frac{1}{2j} [X(k)+X(N-k)]$
Answer» B. $\frac{1}{2} [X(k)-X(N-k)]$

1.	If X(k) is the DFT of x(n) which is defined as x(n)=x1(n)+jx2(n), 0≤ n≤ N-1, then what is the DFT of x1(n)?
A.	\(\frac{1}{2} [X(k)+X(N-k)]\)
B.	\(\frac{1}{2} [X(k)-X(N-k)]\)
C.	\(\frac{1}{2j} [X(k)-X(N-k)]\)
D.	\(\frac{1}{2j} [X(k)+X(N-k)]\)
Answer» B. \(\frac{1}{2} [X(k)-X(N-k)]\)