The laplace transform of the waveform shown in the figure

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The laplace transform of the waveform shown in the figure is
F(s) = 1 (1 + Ae^-e + Be^-4s + Ce^-6s + De^-8s)
s²

What is the value of D?

1. – 0·5
2. – 1·5
3. 0·5
4. 2·0

Correct Option: C

The given waveform:

Given, F(s) =	1	[1 + Ae^–s + Be^–4s + C^e–6s + D^e–8s]
	s²

The slope of D is 1/2 = 0·5
Hence alternative (C) is the correct choice.