1. The problem statement, all variables and given/known data Find the limes of the equation, so lim n -> ∞ 2. Relevant equations 3. The attempt at a solution I tried to solve this by using the third binomial formula and formed this to I wanted to show that it's <= 1/n, but then I checked wolfram alpha and it seems like it actually conv. against sqrt(2), but how do I get there?