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Differential Equations problem.

  • 17-05-2008 9:43am
    #1
    Registered Users, Registered Users 2 Posts: 1,152 ✭✭✭


    This is question is fairly regular on past exam papers but I can't find it anywhere in my lecture notes, tutorial questions or textbook. I was wondering if anyone could point me in the right direction with it?
    Thanks

    http://img140.imageshack.us/my.php?image=q5vu2.jpg


Comments

  • Registered Users, Registered Users 2 Posts: 3,620 ✭✭✭Grudaire


    This is probably the best link:

    www.rit.edu/~369www/media/pdf/math/de27.pdf

    You basically solve the two sides seperatly (y' - y/x)=0 (Homogeneous first order DE)

    answer is known as Y(h) h subscripted

    And Y(p) = 2x^2


  • Registered Users, Registered Users 2 Posts: 3,620 ✭✭✭Grudaire


    Here's another site, it covers evrything she did (I think:rolleyes:)

    http://www.physics.ohio-state.edu/~physedu/mapletutorial/tutorials/diff_eqs/intro.html


  • Registered Users, Registered Users 2 Posts: 1,152 ✭✭✭carlowboy


    It better....or else:mad::D


  • Moderators, Science, Health & Environment Moderators Posts: 1,852 Mod ✭✭✭✭Michael Collins


    Cliste's method should work fine, but be aware that that method is generally used for 2nd order ODEs. It will still work, but your choice of the trial form for the particular solution may have to be slightly modified from what you're given in tables (assuming you're using the undetermined coeffecients way of getting the particular solution).

    The best way of solving 1st order equations like these is to use an integrating factor, but you may not have learnt that...


  • Registered Users, Registered Users 2 Posts: 3,620 ✭✭✭Grudaire


    We did, kinda. By learnt do you mean be tlked at ridiculasly fast, as slides are put up faster then they can be taken down, and forget understanding them, and no they're not on the internet either..


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