Solving a Laplace transform of a piecewise function

[Brunoboy]

Hi everyone! :)

Have a problem here I can't solve atm. Solve the Laplace transform, when:

My try:

Would really appreciate some help!

 

[Svein]

In your 3. line you forgot to insert "1" for "t".

 

[Brunoboy]

Thanks a lot! :)

What an easy mistake, omg.