Results 1 to 2 of 2

Math Help - General solutions to nonhomogenous ODE's

  1. #1
    Newbie
    Joined
    Oct 2008
    Posts
    2

    General solutions to nonhomogenous ODE's

    I need to find a real general solution to y'' + 9y = 18x + 36 sin3x
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Oct 2008
    Posts
    147
    It's been awhile, but I think you can split it, so you find y'' +9y = 18x, and y'' +9y =36 sin(x), and then add the solution together. Oh, and also y'' + 9y = 0. The homogenous case is simple, for sin(x) and 18x, the guess method could work or maybe variation of parameters.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. General and Particular Solutions
    Posted in the Algebra Forum
    Replies: 6
    Last Post: September 14th 2010, 11:45 PM
  2. General Solutions
    Posted in the Trigonometry Forum
    Replies: 5
    Last Post: June 5th 2009, 05:24 PM
  3. general solutions to the ODE
    Posted in the Calculus Forum
    Replies: 1
    Last Post: October 16th 2008, 05:26 PM
  4. General solutions.
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: September 18th 2008, 04:08 AM
  5. General solutions
    Posted in the Trigonometry Forum
    Replies: 6
    Last Post: August 20th 2008, 05:09 AM

Search Tags


/mathhelpforum @mathhelpforum