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Thread: non homogeneous general solution to d^2x/dt^2 + 2dx/dt-3x=5e^-t+sin3t

  1. #1
    New Member
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    Nov 2017
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    non homogeneous general solution to d^2x/dt^2 + 2dx/dt-3x=5e^-t+sin3t

    Could anyone check my work:

    Question is, find the general soultion of the following DE

    d^2x/dt^2 + 2dx/dt-3x=5e^-t+sin3t

    The answer i got was =

    Ae^t + Be^-3t - 5/4e^-t -1/10sin 3t

  2. #2
    Elite Member
    Join Date
    Apr 2005
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    8,922
    In order for anyone to check your work, you will have to show some work. Just dropping your final answer doesn't help anyone.

    What methods did you use? What difficulties did you encounter?
    Last edited by tkhunny; 12-11-2017 at 11:22 AM.
    "Unique Answers Don't Care How You Find Them." - Many may have said it, but I hear it most from me.

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