Y=x*arctanx
when does y'=0???

Y=x*arctanx
when does y'=0???

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i believe the first step would be to differentiate =_= this sounds complicated...

is it y' =0 when x=0

\[\frac{d(x*\tan^{-1}x)}{dx} = \frac{x}{1 + x^2} + \tan^{-1}x\]

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