1.

The signal energy of the continuous-time signalX(t) = [(t – 1) u(t - 1)] – [(t - 2)u(t - 2)] – [(t - 3)u(t – 3)] + [(t - 4)]u(t – 4)] is

A. 11/3
B. 7/3
C. 1/3
D. 5/3
Answer» E.


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