1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Y''-6y'+5y = -25t^3, Diff EQ, did I mess up my guess again?

  1. Feb 24, 2006 #1
    Hello everyone! its me!
    I thought i for sure did this one right, but no, lies!
    Directions are to find a particular solution

    Here is what i did:
    [​IMG]



    Thanks :)
     
  2. jcsd
  3. Feb 24, 2006 #2

    quasar987

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Why are you so quick to conclude that B=C=D=0 ?
     
  4. Feb 24, 2006 #3

    quasar987

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

  5. Feb 24, 2006 #4
    I don't see where i messed up here, i thought i found all the co-efficents correctly:
    [​IMG]

    Anyone see? Thanks!@
     
  6. Feb 24, 2006 #5

    quasar987

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    I don't. :/
     
  7. Feb 25, 2006 #6
    C is -186/5 so D must be changed too.
     
  8. Feb 25, 2006 #7

    quasar987

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Well spotted!
     
  9. Feb 25, 2006 #8
    Ahh good one!
    thanks for the help everyone!
    [​IMG]
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?