Page 105 - Schaum's Outline of Differential Equations

88 SECOND-ORDER LINEAR HOMOGENEOUS DIFFERENTIAL EQUATIONS [CHAR 9

Supplementary Problems

Solve the following differential equations.

9.17. y"-y = 0 9.18. y"-y'-30y = 0

9.19. y"-2y' + y = 0 9.20. y" + y = Q

9.21. y"+2y' + 2y = 0 9.22. y"-ly = Q

9.23. y"+6y' + 9y = 0 9.24. y"+2y' + 3y = 0

9.25. y"-3y'-5y = 0

9.27. x-20x + 64x = 0 9.28. x + 60x + 500x = 0
9.29. x-3x + x = 0 9.30. x - lOi + 25x = 0

9.31. x + 25x = 0 9.32. x + 25x = 0
9.33. x + x + 2x = 0 9.34. u - 2ii + 4u = 0

9.35. u - 4u + 2u = 0 9.36. ii-36ii = 0