Math Help - Solving this differential equation..

1. Solving this differential equation..

I am required to solve this second order ODE :
y"(x)-3y'(x)-2y(x)=sinh(x)

....using the Variation of Parameters method.
The final answer is EXTREMELY complicated,and i have no idea how to get to that answer.Its too long to be typed here.Would really appreciate the help.thanks.
Note: it is a parabolic sinh(x) , not just sin(x).

2. Originally Posted by tite
y"(x)-3y'(x)-2y(x)=sinh(x
Here.

3. thanks...

just one more question,what if i want the solution to be in terms of sinh and cosh ? how can i transform what you gave me into such?
thanks again.

4. Originally Posted by tite