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!

Homework Help: Constructing A Differential Equation From A Solution Set

  1. Sep 17, 2013 #1
    1. The problem statement, all variables and given/known data

    y = c1e3xcos(2x)+c2e3xsin(2x)+c3+c4x

    2. Relevant equations

    Differential Equations.

    3. The attempt at a solution
    I am having trouble what the roots are for the c3, and c4 parts. I know they are a repeated root, but is it just k= 0? It seems like it would work, but I am not sure.
  2. jcsd
  3. Sep 17, 2013 #2


    User Avatar
    Homework Helper

    You are on the right track. What is the differential equation you got? If the solution of it agrees with the given one, you solved the problem.

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted