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electronics and communication engineering signals and systems
1. The signal define by the equations u(t - a) = 0 for t < a and u(t - a) = 1 for t ≥ a is
(A): a pulse function
(B): a shifted unit step function orginating at t = a
(C): a unit step function
(D): none of the above
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By: guest on 02 Jun 2017 01.13 am
u(t) is a unit step function u(t - a) is a unit step function shifted in time by a.
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