Spoètìte limity (pokud existují):
$$
\lim_{(x,y) \to (0,0)} \frac{x^2y}{x^2 + y^2}, \quad
\lim_{(x,y) \to (0,0)} (x+y)^2\sin\frac{1}{\sqrt{x^2 + y^2}}
$$
$$
\lim_{(x,y) \to (0,0)} {(x^2 + y^2)}^{x^2y^2}. \quad
$$
