1. The problem statement, all variables and given/known data I decided to work through my old calculus notes and I can't find any information about these limits. Basically I'm trying to evaluate lim n->∞ (-1)n *sqrt(n+1)/n. 2. Relevant equations Not really applicable. 3. The attempt at a solution Well, in this particular case it's easy to see that the limit will be zero if we divide the numerator and denominator by n, since the square root will tend towards zero. However, could this limit have been evaluated if the squared n was actually n2? Thanks in advance!