"Find the limit. Use l'Hopital's rule where appropriate. If there is a more elementary method, try using it. If l'Hopital's rule doesn't apply, explain why."
The limit is lim (as x->∞) of the function (1+ (a/x))^(bx)
I know that for limits of one function divided by another, implementing l'Hopital's rule is pretty simple. I'm not sure where to use it here, however.