6.6 Find the 10-point inverse DFT of k=0 X(k) = 1 ≤ k ≤9 To find the inverse DFT, note that X(k) may be expressed as follows: X(k) = 1 + 28(k) 0≤k≤9 Written in this way, the inverse DFT may be easily determined. Specifically, note that the inverse DFT of a constant is a unit sample: DFT xi(n) = 8(n) PFS X,(k)=1 Similarly, the DFT of a constant is a unit sample: DFT N2(n) = 1 X2(k) = N8(k) Therefore, it follows that x(n) = +8(n)