What is the derivative for(adsbygoogle = window.adsbygoogle || []).push({});

arctan(2/x)?

I know it's generally: [(1/a)arctan(x/a)]' = 1/(x^2 + a^2); but in my case its x^-1!

Thanks for any help.

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# Homework Help: What is the derivative for arctan(2/x)?

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