I took an ODE course last year, but I seem to have forgotten some stuff. I need to solve this equation:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\frac{d^2u}{dt^2} + {\omega}^2u = f_osin({\mu}t)[/tex]

with the boundry conditions:

u(0) = 0, du/dt(0) = 0

When I tried to solve the homogenenous equation first, I got

[tex]u_g(t)=c_1e^{i{\omega}t}+c_2e^{-i{\omega}t}[/tex]

I then differentiated and set up the system with the two boundy conditions...but I got c1+c2=0 and c1-c2=0...c1=c2=0.

This seems wrong. Any help would be appreciated

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# Diff EQ

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