Determine the Laplace Transform of the following function:

u(t - 3)e^t

I didn't really understand this part of my professors lecture, so if someone could explain to me what to do, that would be very helpful. Thanks

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- Nov 25th 2008, 01:48 PMjkruLaplace Transforms
Determine the Laplace Transform of the following function:

u(t - 3)e^t

I didn't really understand this part of my professors lecture, so if someone could explain to me what to do, that would be very helpful. Thanks - Nov 25th 2008, 02:07 PMshawsend
Hey that's the shifting theorem with u being the unit step function or the Heaviside function H. So:

So how about if we let so that then:

- Nov 25th 2008, 02:13 PMjkru
Thanks, that helps.