Hi all,

I am having trouble gettin the answer to the attached question. I need to find f(t) and then find L[f(t)] using the t -shifting theorem.

I tried working it out...

f(t) = e^t - e^t u(t-2)

But when i take the Laplace transform i can't get the answer. The answer is

(1 - e^(2 - 2s))/ (s -1)

Thanks in advance,

ArTiCk