Question: If X1(k) and X2(k) are the N-point DFTs of X1(n) and x2(n) respectively, then what is the N-point DFT of x(n)=ax1(n)+bx2(n)?
Options
A : X1(ak)+X2(bk)
B : aX1(k)+bX2(k)
C : eakX1(k)+ebkX2(k)
D : None of the mentioned
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