- #1
Moneer81
- 159
- 2
Homework Statement
What is the laplace transform of e^(-t) cos 2t u(t-1)
Homework Equations
definition of Laplace transform: LT of f(t) = integral of f(t)e^-st dt, where limits of integration are from 0 to infinity
The Attempt at a Solution
since I have u(t-1) then do I just change the limits of integration to go from 1 to infinity instead?
then I guess what is the fastest way to evaluate the resulting integral:
integral of e^-(s+1)t cos 2t dt ?