I have a (possible) proof for that I'd like you guys to verify. I'm pretty sure my calculations are correct, but I'm not sure the premise that I said something like "now we just have to prove that lim... n (ln(1 + x/n)) = x". If my approach is completely incorrect, then could someone start me off in the right direction with a hint? Here's a direct link, so I don't burden viewers with slow load times. Thanks!