2. Use Laplace transform to solve y" + y = 6(t – 27) cos(t) y(0) = 0, y'(0) = 1 %3D %3D

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 77E
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2. Use Laplace transform to solve
y" + y = 6(t – 27) cos(t)
y(0) = 0, y'(0) = 1
%3D
%3D
Transcribed Image Text:2. Use Laplace transform to solve y" + y = 6(t – 27) cos(t) y(0) = 0, y'(0) = 1 %3D %3D
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y"+y= S(t-28) cast , yloj= 0, L'10) =1
Taking oplace transfom on bath sides;
L[ y"ty]= L[S(t- 2x) Cost)
2
> se YCS)-sy l0)- y'lo)+ Y(S) = é"
Cos 2 t
(*: L[ fH) ult-a)] = é ? f(a))
as
(s*+) Y(5) - Sx0 -) ニ
2
it.
(6+1) YIS) = e
275
(: Ca82=1)
Taking beth sides;
in verse laplace on
e
こ
y(t) =
ft) Ult-27) + sint
cshene f(t)=
sin (t2T), t> 2
tく 2オ
And ult-27) s on voit step function
sint. Ult -27) +
y (t) = sint.Ult-27)+ Sint
Transcribed Image Text:y"+y= S(t-28) cast , yloj= 0, L'10) =1 Taking oplace transfom on bath sides; L[ y"ty]= L[S(t- 2x) Cost) 2 > se YCS)-sy l0)- y'lo)+ Y(S) = é" Cos 2 t (*: L[ fH) ult-a)] = é ? f(a)) as (s*+) Y(5) - Sx0 -) ニ 2 it. (6+1) YIS) = e 275 (: Ca82=1) Taking beth sides; in verse laplace on e こ y(t) = ft) Ult-27) + sint cshene f(t)= sin (t2T), t> 2 tく 2オ And ult-27) s on voit step function sint. Ult -27) + y (t) = sint.Ult-27)+ Sint
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