Let fx,y=y2-xyx-y Show that limx,y→0,0fx,y=0

Let $f (x, y) = \frac{y^{2} - x y}{\sqrt{x} - \sqrt{y}}$ Show that $\lim_{(x, y) \to (0, 0)} f (x, y) = 0$

Matching exercise

Match the items on the right to the items on the left.

Step - 1

Step - 2

Step - 3