- #1

lookAtree

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## Homework Statement

Hi everyone, I have the following differential equation that I am trying to solve:

(-1/k[itex]^{2}[/itex])*(d[itex]^{2}[/itex]y/dx[itex]^{2}[/itex]) - y = (Q*c/P*L)*x

Where Q,c,P,L, and k are constants. The solution ends up being:

y = A*cos(k*x) +B*sin(k*x) -(Q*c/P*L)*x

Where A and B are constants (of integration).

I want to say that there is complex roots involved but even with that I cannot accomplish the desired result.

I can't seem to figure out any uniting steps, any help would be appreciated.

Is there an identity being used?