Differential Equations and Linear Algebra (4th Edition)

Published by Pearson
ISBN 10: 0-32196-467-5
ISBN 13: 978-0-32196-467-0

Chapter 10 - The Laplace Transform and Some Elementary Applications - 10.1 Definition of the Laplace Transform - Problems - Page 676: 31

Answer

$$\dfrac{1-2 e^{-2s}}{s} $$

Work Step by Step

The Laplace Transform can be written as: $L[F(t)]=\int_{0}^{\infty} e^{-st} f(t) dt $ Now, $L[F(t)]=\int_{0}^{2} e^{-st} f(t) dt+\int_{2}^{\infty} e^{-st} f(t) dt\\=\int_{0}^{2} e^{-st} dt+\int_{2}^{\infty} e^{-st} dt\\=\dfrac{e^{-2s}}{-s}+\dfrac{1}{s}+ \dfrac{1}{s} (e^{-\infty}-e^{-2s})\\=\dfrac{1-2 e^{-2s}}{s} $
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.