1. The problem statement, all variables and given/known data This question asks you to evaluate the limit of the following function lim sqrt(9x^2-3x) -3x x-> infinity I did it using 2 methods: 1) lim sqrt(9x^2-3x) -3x x-> infinity = lim x(sqrt(9-3/x)) -3x x-> infinity = lim 3x - 3x x -> infinity = 0 Second Method: I multiplied by the conjugate radical/conjugate radical and after simplification, I get lim -3x/6x x -> infinity = 1/2 Why is it that I'm getting different answers? Which solution is the right one? Also, how do I type up mathematical formulas? Can someone point me to a LaTex tutorial? Thanks!