Use the formula {t"f(t)} (s) = ( − 1)n- dn dsn (a) L{t cos bt} s bt} (b) {1² cos (L{f}(s)) to help determine the following the expressions.
Use the formula {t"f(t)} (s) = ( − 1)n- dn dsn (a) L{t cos bt} s bt} (b) {1² cos (L{f}(s)) to help determine the following the expressions.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Use the formula {t¹f(t)} (s) = ( − 1)n-
dn
dsn
(L{f}(s)) to help determine the following the expressions.
(a) L{t cos bt}
(b) Lt² cos bt}
Click here to view the table of Laplace transforms.
(a) L{t cos bt}(s) =
(b) £{t² cos bt} (s) = ¯
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