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WhatIsTheLim

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## Homework Statement

hello, I have a little problem with some limit of the functions, could you help me? please

## Homework Equations

[tex]\lim_{x \to 0} \quad \displaystyle\frac{\sqrt[3]{1+\mbox{arctg} 3x}-\sqrt[3]{1-\arcsin 3x}}{\sqrt{1-\arcsin 2x}-\sqrt{1+\mbox{arctg} 2x}}

[/tex]

## The Attempt at a Solution

it's one of the hardest example from my book, i don't even know how to start it.

i will be very grateful for help

and.. i don't know why my tex doesn't work. do you have some idea?

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