I am finishing up my year of Calc I/II BC. Our teacher is giving us some differential equations work. I don't understand it. Could I get some help with the attached problem.

Thanks,

Meks

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- May 17th 2009, 03:13 PMmeksNeed help with second-order ordinary differential equation
I am finishing up my year of Calc I/II BC. Our teacher is giving us some differential equations work. I don't understand it. Could I get some help with the attached problem.

Thanks,

Meks - May 18th 2009, 06:59 AMJester
Try the substitution $\displaystyle y = u y_1$ where $\displaystyle y_1$ satisfies the original ODE and you'll get an ODE for $\displaystyle u$ (missing $\displaystyle u$, just $\displaystyle u'$ and $\displaystyle u''$) so letting $\displaystyle v = u' $ you'll get a linear first order ODE which you can solve.

That should get you started.