hi ↑ stuart clark:
just some brief ideas
Skrytý text:for

there is

and

as

giving

for any positive integer
expression

is negative for

and can be made arbitrarily small moving

towards limit point
expression

is increasing on some right neighborhood of

small enough that also

there holds too
so

can be made arbitrarily small either by moving

towards limit point
putting all of this together it looks to me like

where

,

giving the limit

for the fraction and whole thing too, since as stated above