Here is the problem:
Evaluate $\lim_{n \to \infty} \sqrt n (\sqrt[n]{n}-1)$
At my disposal:
For $ n \ge 1, n \in \mathbb{N}$ , we have $(\sqrt[n]{n}-1)\le 2/ \sqrt n $
Hence , the upper bound of the expression is $2$.
I suspect that the limit is $0$.
A hint please for an elementary solution without logs.
Thank you.