# Thread: Couple of Laplace Questions

1. ## Couple of Laplace Questions

Hey everyone. Having some troubles with a couple of laplace questions (as the title suggests). I'm hoping the latex makes it readable, but I'm pretty new at the stuff.

Find the laplace of:-
1. sinh(3t-4)
2. $\int{e^u}cos(t-u){u^2}du$ <- Int from 0 to t
3. $\int{f(u)du}$ in terms of F(p) = L{f(t)} <- Int from 0 to (t-a)

For (2) I'm thinking convolution theorem, but struggling with ${u^2}{e^u}$. And for one, well, the main struggle is the 3t

Can anyone please throw some assistance my way?

e

2. Originally Posted by exphate
Hey everyone. Having some troubles with a couple of laplace questions (as the title suggests). I'm hoping the latex makes it readable, but I'm pretty new at the stuff.

Find the laplace of:-
1. sinh(3t-4)
Use:

$\sinh(3t-4)=\dfrac{e^{3t-4}-e^{-(3t-4)}}{2}$

CB