The Fourier transform of the signal u(t+1) – 2u(t) + u(t-1) is ____

1.	The Fourier transform of the signal u(t+1) – 2u(t) + u(t-1) is ____________
A.	\(\frac{2 sin⁡ω-2}{jω}\)
B.	\(\frac{2 cos⁡ω-2}{jω}\)
C.	\(\frac{2 cos⁡ω+2}{jω}\)
D.	\(\frac{2 sin⁡ω+2}{jω}\)
Answer» C. \(\frac{2 cos⁡ω+2}{jω}\)

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