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Q1:

The Laplace transform of the given waveform is

A
(1 - e-s + e-2s)

B
(1 - e-s + e-2s)

C
(1 - 2e-s + e-2s)

D
(1 - 2e-s)

ANS:C -

(1 - 2e-s + e-2s)

f(t) = f1(t) + f2(t) + f3(t) = 2tu(t) - 2 x 2(t - 1) + 2(t - 2)u(t - 2) f(s) = - e-s + e-2s = (1 - 2e-s + e-2s).



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