$$\lim_{(x,y) \to (0,0)} \frac{x y^2}{(3x^2 + 4x^2)}$$
How would one calculate above "using polar coordinates"? It was mentioned during class shortly, but we won't be introduced to this until next semester, yet I'd like to know.
It's a "$0/0$" expression, but I didn't use the method where I look at different "paths", as the teacher said the limit exists, thus using the path method wouldn't get me anywhere.