If g(n) is a real valued sequence of 2N points and x1(n)=g(2n) and x2 – McqOptions

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1.	If g(n) is a real valued sequence of 2N points and x1(n)=g(2n) and x2(n)=g(2n+1), then what is the value of G(k), k=0,1,2…N-1?
A.	X1(k)-W2kNX2(k)
B.	X1(k)+W2kNX2(k)
C.	X1(k)+W2kX2(k)
D.	X1(k)-W2kX2(k)
Answer» C. X1(k)+W2kX2(k)

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