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 - 10.9 The Convolution Integral - Problems - Page 716: 6

Answer

See below

Work Step by Step

We are given: $f(t)=e^t\\ g(t)=e^t \sin t$ Obtain: $(f * g)=\int^t_0f(t-x)g(x)dx\\ =\int^t_0 e^{t-x} e^x \sin xdx\\ =e^t \int^t_0 \sin xdx\\ =\begin{bmatrix} -e^t \cos x \end{bmatrix}^t_0\\ =e^t (1-\cos t)$
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