Question

laplace tranform of r(t-1)?

Answer 1

What is r?

Answer 2

r is ramp function

Answer 3

does this help you?
\[L[f(t-a)u(t-a)]=e^{-as}F(s)\]

Answer 4

but if we use the basic formula( integral t . e^(-st) dt) where limits are from 1 to infinity i get different results