How can i prove that this integral is convergent?
$$ \int_{\vert\xi\vert\geq 1} \vert\xi\vert ^{-2\left[ \frac{n}{2}\right] -2} d\xi $$
I thought to use polar coordinates but i don't know how to work with $ \left[ \frac{n}{2}\right] $. Can anyone help me?