1. proving

how do you prove that the lim xe^(-x) tends to 0 as x tends to infinity?

2. Originally Posted by alexandrabel90
how do you prove that the lim xe^(-x) tends to 0 as x tends to infinity?
rewrite as ...

$\lim_{x \to \infty} \frac{x}{e^x}$

use L'Hopital