1. The problem statement, all variables and given/known data Lim as x→∞ of ((2x+1)/(2x-1))^(sqrtx) 2. Relevant equations 3. The attempt at a solution When I initially plugged in ∞ for my x, I get (∞/∞)^∞, correct? If so, should I just let y=((2x+1)/(2x-1))^(sqrtx) and take the limit of both sides using ln? That's what I attempted to do and I got lim x→∞ of (sqrtx)(ln((2x+1)/(2x-1))^(sqrtx)) = (inf)(ln(∞/∞)) which I can't make any sense of.