Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Solving ode with complex numbers

  1. Mar 25, 2014 #1
    I want to solve [itex] y''+y'+y=(sin(x))^2 [/itex] and try to use
    [itex] y=Ae^{ix} [/itex] but then when I square it I get [itex] A^2 e^{2ix} [/itex]
    I found y' and y'' and solved for A and it didn't work I guess I could use the formula for reducing powers but I would like to try and get around that.
  2. jcsd
  3. Mar 26, 2014 #2


    User Avatar
    Homework Helper

    (sin(x))^2 is a solution of y'''+4y

    chose the particular solution from those solutions
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook