Question

find the laplace transform of the following function:

Answer 1

What is laplace transform?

Answer 2

laplace transform of a function f is a function L[f] defined by\[L[f](s)=\int\limits_{0}^{\infty}e ^{-st}f(t)dt\]

Answer 3

@JamesJ 's the expert.

Answer 4

\[\mathcal{L}(f(t))=\int\limits_0^7 1\cdot e^{-st}dt+\int\limits_7^{+\infty} \cos{t}\cdot e^{-st}dt\]