(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Determine the location and type of all critical points of the given equations and sketch the phase portrait

y"+cosy=0

3. The attempt at a solution

I've done some like this before but they were all systems of equations. I'm actually not sure how to do the simpler version >_< I think this is asking for maxima and minima? is that right?

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# Homework Help: Critical points of differential equation

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