Compute the Laplace transform of f(t) = 8(t – 7) Use Laplace Transforms to solve the following initial value problem. y" + 2y' – 3y = 48(t – 2), y(0) = 2, y'(0) = -2 %3D

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Compute the Laplace transform of f(t) = 8(t – 7)
Use Laplace Transforms to solve the following initial value problem.
y/" + 2y' – 3y = 48(t – 2),
y(0) = 2, y'(0) = -2
HINT: There are two PFDS that you might find useful
-1
+
s – 1
4
1
2s + 2
and
(* + 3)(* – 1) = 3+
(s + 3)(s – 1)
s+3
SOLUTION:
y(t) = e' + e=t – H(t – 2) [e-3«-2) – et-2|
Transcribed Image Text:Compute the Laplace transform of f(t) = 8(t – 7) Use Laplace Transforms to solve the following initial value problem. y/" + 2y' – 3y = 48(t – 2), y(0) = 2, y'(0) = -2 HINT: There are two PFDS that you might find useful -1 + s – 1 4 1 2s + 2 and (* + 3)(* – 1) = 3+ (s + 3)(s – 1) s+3 SOLUTION: y(t) = e' + e=t – H(t – 2) [e-3«-2) – et-2|
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