I am trying to do a question for calculus. I am supposed to find a minimum time for something.. I know how to do the question but I am stuck on how to find the derivative of this function it really confuses me.(adsbygoogle = window.adsbygoogle || []).push({});

(sq. root 1^2+x^2)/3 + 3-x/5

I need to find dt/dx... and I am clueless on how to find this???

THANKS TONS!

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# Finding the derivative of

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