1. Limited time only! Sign up for a free 30min personal 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!

Separation of variables

  1. Jun 19, 2011 #1
    Im doing separation of variables now and im stuck....ive come up to this stage

    -5 ln 2-3i = t^2/2 + C

    my problem is do i need to divide the C and t^2/2 by -5? or dont divide the C?

    plz help me..
  2. jcsd
  3. Jun 19, 2011 #2


    User Avatar
    Homework Helper

    You need an initial condition.
  4. Jun 19, 2011 #3
    sorry i dont get it...im trying to make the general solution......from the question i(0) = 12
  5. Jun 19, 2011 #4


    User Avatar
    Homework Helper

    So setting t=0 shows that -5ln|2-3*i(0)|=C=> -5ln|2-36|=C=>-5ln(34)=C, so substitute this into your equation.
  6. Jun 19, 2011 #5
    ok thanks for the help
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Separation of variables
  1. Separation of Variables (Replies: 13)