16. y" + 9y = 2x²e3x + 5 %3D

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.9: Area Problems
Problem 10P
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please help for # 16 and 19

3.5 Problems
In Problems 1 through 20, find a particular solution yp of the
given equation. In all these problems, primes denote deriva-
tives with respect to x.
1. y" + 16y
3. у" — у' — 6у — 2 sin 3x
5. y" + y' + y = sin?
7. у" — 4у 3 sinh x
9. y" + 2y' – 3y = 1+ xe*
10. у" + 9у %3D 2 cos 3x + 3 sin 3x
33. y" + 9y = sin 2x; y(0) = 1, y'(0) = 0
34. y" + y = cos x; y(0) = 1, y'(0) = –1
35. y" – 2y' + 2y = x + 1; y(0) = 3, y'(0) = 0
36. y(4) – 4y" = x²; y(0) = y'(0) = 1, y"(0) = y(3) (0) = -1
37. y(3) – 2y" + y' = 1 + xe*; y(0) = y'(0) = 0, y"(0) = 1
38. у" + 2y' + 2у
39. y(3) + y" = x +e-*; y(0) = 1, y'(0) = 0, y"(0) = 1
40. y(4) – y = 5; y(0) = y'(0) = y"(0) = y(3) (0) = 0
41. Find a particular solution of the equation
2. y" — у' — 2у — Зх + 4
4. 4y" + 4y' + y = 3xe*
6. 2y" + 4y' + 7y = x²
8. y" – 4y = cosh 2x
e 3x
,//
sin 3x; y(0) = 2, y'(0) = 0
,//
-
y(4) – y(3) – y" – y' – 2y = 8x°.
11. у(3) + 4у' 3 3х — 1
13. y" + 2y' + 5y = e* sin x
15. y(5) + 5y(4) – y = 17
12. у (3)
14. y(4) – 2y" + y = xe*
16. y" + 9y = 2x²e3x + 5
»(3)
+ y' = 2 – sin x
42. Find the solution of the initial value problem consisting
of the differential equation of Problem 41 and the initial
conditions
17. у" + у 3D sin x + xcos x
18. y(4) – 5y" + 4y = e* – xe2x
19. y(5) + 2y(3) + 2y" = 3x² – 1
20. y(3) – y = e* +7
y (0) = y'(0) = y"(0) = y(3) (0) = 0.
-
43. (а) Write
Зіх
cos 3x +i sin 3x
= (cos x +i sin x)3
= e
Transcribed Image Text:3.5 Problems In Problems 1 through 20, find a particular solution yp of the given equation. In all these problems, primes denote deriva- tives with respect to x. 1. y" + 16y 3. у" — у' — 6у — 2 sin 3x 5. y" + y' + y = sin? 7. у" — 4у 3 sinh x 9. y" + 2y' – 3y = 1+ xe* 10. у" + 9у %3D 2 cos 3x + 3 sin 3x 33. y" + 9y = sin 2x; y(0) = 1, y'(0) = 0 34. y" + y = cos x; y(0) = 1, y'(0) = –1 35. y" – 2y' + 2y = x + 1; y(0) = 3, y'(0) = 0 36. y(4) – 4y" = x²; y(0) = y'(0) = 1, y"(0) = y(3) (0) = -1 37. y(3) – 2y" + y' = 1 + xe*; y(0) = y'(0) = 0, y"(0) = 1 38. у" + 2y' + 2у 39. y(3) + y" = x +e-*; y(0) = 1, y'(0) = 0, y"(0) = 1 40. y(4) – y = 5; y(0) = y'(0) = y"(0) = y(3) (0) = 0 41. Find a particular solution of the equation 2. y" — у' — 2у — Зх + 4 4. 4y" + 4y' + y = 3xe* 6. 2y" + 4y' + 7y = x² 8. y" – 4y = cosh 2x e 3x ,// sin 3x; y(0) = 2, y'(0) = 0 ,// - y(4) – y(3) – y" – y' – 2y = 8x°. 11. у(3) + 4у' 3 3х — 1 13. y" + 2y' + 5y = e* sin x 15. y(5) + 5y(4) – y = 17 12. у (3) 14. y(4) – 2y" + y = xe* 16. y" + 9y = 2x²e3x + 5 »(3) + y' = 2 – sin x 42. Find the solution of the initial value problem consisting of the differential equation of Problem 41 and the initial conditions 17. у" + у 3D sin x + xcos x 18. y(4) – 5y" + 4y = e* – xe2x 19. y(5) + 2y(3) + 2y" = 3x² – 1 20. y(3) – y = e* +7 y (0) = y'(0) = y"(0) = y(3) (0) = 0. - 43. (а) Write Зіх cos 3x +i sin 3x = (cos x +i sin x)3 = e
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