Hello,

I am trying to solve what I thought was going to be a simple differential equation.

.

So I set

Then separating variables and integrating I got

Solving for y

remembering we can again separate variables

This is where I get stuck. I know this should be integrable to a sinusoid, but I don't know how. The actual question asks you to prove that the solution oscillates with a period proportional to where A is the amplitude.

Any help would be appreciated.

Brad