1. The problem statement, all variables and given/known data Show that ln(e)=1. 2. Relevant equations ln(x)=antiderivative from 1 to x of dt/t 3. The attempt at a solution I assume we have to use the fact that e= lim as n->infinity of (1+1/n)^n, and perhaps can apply l'Hopital's rule to transform that limit -- but I'm not sure where to go from there.