Find the Laplace transform of f (t) = cos²(3t).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.7: Operations On Functions
Problem 53E
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Find the Laplace transform of f(t) = cos²(3t).
1
-
2s
2s2+72
1
+
2s
2s2+72
1
2s
s2+72
+ 32+72
Transcribed Image Text:Find the Laplace transform of f(t) = cos²(3t). 1 - 2s 2s2+72 1 + 2s 2s2+72 1 2s s2+72 + 32+72
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