Laplace Transforms: Solving [(Sin(t))^2] Problem

[WhoWeAre]

Hi Everyone,
I'm working with Laplace Transforms and I don't know how to deal with the Laplace Transform of [(Sin(t))^2].
If anyone could help me that would be great.
Thanks

 

[Cyrus]

Please do not post homework questions in a thread specifically labeled 'tutorials', especially when it says homework help right below...