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=N,N-1, 2N-1?
A.	X<sub>1</sub>(k)-W<sub>2</sub><sup>k</sup>X<sub>2</sub>(k)
B.	X<sub>1</sub>(k)+W<sub>2</sub><sup>k</sup>NX<sub>2</sub>(k)
C.	X<sub>1</sub>(k)+W<sub>2</sub><sup>k</sup>X<sub>2</sub>(k)
D.	X<sub>1</sub>(k)-W<sub>2</sub><sup>k</sup>NX<sub>2</sub>(k)
Answer» E.

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