Hi all,(adsbygoogle = window.adsbygoogle || []).push({});

I've been practising for the exam and did some limits from our master's collections:

[tex]

\lim_{x \rightarrow \frac{\pi}{3}} \frac{\tan^{3} x - 3\tan x}{\cos \left( x + \frac{\pi}{6} \right) }

[/tex]

I got the result -24, but there is written -12. Which one is correct? I tried to prove the result in Maple and Mathematica, but in neither I'm not able to get anything but symbolic result.

Thank you.

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# Limit - which result is correct?

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