http://i52.photobucket.com/albums/g37/mmmmms/aaa.jpg

dx/dt - 5x = -3Ae^2t

---->

2x-5x^2 = -3Ae^2t

what should i do to get the answer?

thx

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- November 8th 2009, 11:40 PMHikari Clovercoupled equations
http://i52.photobucket.com/albums/g37/mmmmms/aaa.jpg

dx/dt - 5x = -3Ae^2t

---->

2x-5x^2 = -3Ae^2t

what should i do to get the answer?

thx - November 9th 2009, 11:04 PMCaptainBlack

First this is a linear constant coefficeient non-homogeneous ODE. So the general solution is the sum of the general solution of the homogeneous problem:

and a particular integral of:

You should know how to find the general solution to , and to find a particular integral of try a solution of the form:

CB