The impulse response of an initially relaxed system is e^{-2t} u(t). To produce a response of te^{-2t} u(t) what must be the input?

A)e^{-2t} u(t)
B)e^{-t} u(t)
C)2e^{-t} u(t)
D)1/2e^{-2t} u(t)




Answer: A) e^{-2t} u(t)

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