Results 1 to 3 of 3

Math Help - [SOLVED] general solution

  1. #1
    Newbie
    Joined
    Jul 2009
    Posts
    9

    [SOLVED] general solution

    find the general solution of the given differential equation
    u''+ w^2u=cos wt


    I assumed U to be Acoswt+Bsinwt but it didn't work out.
    Thanks in advance.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by elmo View Post
    find the general solution of the given differential equation
    u''+ w^2u=cos wt


    I assumed U to be Acoswt+Bsinwt but it didn't work out.
    Thanks in advance.
    What you found is the solution to u''+ w^2 u = 0. You have to add to this a particular solution of u''+ w^2 u = \cos (wt).
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Jul 2009
    Posts
    9
    solved, thanks.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. General Solution of a differential solution
    Posted in the Differential Equations Forum
    Replies: 4
    Last Post: September 11th 2010, 02:49 AM
  2. General Solution of DE
    Posted in the Differential Equations Forum
    Replies: 9
    Last Post: April 15th 2010, 12:43 AM
  3. Finding the general solution from a given particular solution.
    Posted in the Differential Equations Forum
    Replies: 5
    Last Post: October 7th 2009, 01:44 AM
  4. find the general solution when 1 solution is given
    Posted in the Differential Equations Forum
    Replies: 4
    Last Post: March 4th 2009, 09:09 PM
  5. [SOLVED] Differential Equation General Solution Help
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: September 29th 2008, 12:14 AM

Search Tags


/mathhelpforum @mathhelpforum