1. The problem statement, all variables and given/known data Hi. I'm trying to solve the limit of the function: lim (x,y)→(0,0)f(x,y) = = lim (x,y)→(0,0) 3 * x2 / (x2 + y2) 2. Relevant equations 3. The attempt at a solution x2 / (x2 + y2) is a limited function. Its image is always between 0 and 1. However I don't know what to do from here on. What I tought was that since (x,y) → (0,0) then I can say that x = y and x2 / (x2 + y2) becomes 1/2. I don't think I can do this tho... Any help or hint will be highly appreciated.