I was asked to find dy/dx of inverse tan of x , which is 1/(1+x^2)(adsbygoogle = window.adsbygoogle || []).push({});

Then its says, using that dy/dx ^^^^^ equal to a particular series, find the first 4 terms of inverse tan of x.

I'm confused??? What is it asking here??

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# MacLaurin series, inverse tan of x

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