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

im not sure the elegant way to put it, i need to integrate this somehow (ie, throw over the dt and integrate each side) but that squared is really tripping me up. is there a trick i should be using?

-g(cos(x))=r(dx/dt)^2

2. Relevant equations

3. The attempt at a solution

my attempt was initially to integrate 1/(cos(x))^(1/2), that is not pretty

i heard classmates talking about multiplying though by (dx/dt), not sure if that applies

any help appreciated, thanks!

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# Homework Help: How to integrate partial differential eqn

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