1. The problem statement, all variables and given/known data using the squeeze theorem: lim cosn / sqrt(n) n -> infinity 2. Relevant equations cos/n/sqrt(n) and 1/sqrt(n) 3. The attempt at a solution I just have a question about the squeeze theorem. From my understanding, when using the squeeze theorem for these time of sequence calculus problems, I am always going to have the original equation in the middle? also, why does one side of the squeeze theorem need to be negative? this sequence approaches 0. heres the work: -1/sqrt(n) <= cosn/sqrt(n) <= 1/sqrt(n) and, if this happened to be sin instead of cosine, would i just put 0 on both sides of the <= instead of the equations. thanks alot.