okay, here I have a problem with this limit, i used every method i know of and could solve it... any help or something to get started with be appreciated(adsbygoogle = window.adsbygoogle || []).push({});

[tex] \lim_{\x\rightarrow 1^{-}\} \frac{\sqrt[3]{\arctan(x)} - \arccos(\sqrt[3]{x}) - \sqrt[3]{frac{\pi}{4}}{x-1}[/tex]

okay i tried ti put x=cos^3 (X) but couldnt get to a result

I tried to use the x^3 - y^3 = (x-y)(x²+xy+y²) but no result

i tried everything :-S

PS: we didnt learn the derivative function of arctanx ...

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# PUHLEAZE help with this limit

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