Hey:

In my tutorial question, I firstly had to prove that the Laplace transform of a differential equation was:

L(t) = n!(s-1)^n

---------

s^n+1

This I have proved, now I need to find the Laplace transform of t*L(t) and then have to deduce the value of:

Integral between 0 and inf of : e^-2t * t*L(t)

I'm really stuck, sorry I can't do the Laplex stuff, hope you can understand it.