Show that the limit does not exist \lim _{(x, y) \rightarrow(2,0)} \frac{3(x-2) y}{(x-2)^{2}+y^{2}} Determine the set of points at which the function f (x,y) = 2x+ 3y/ 3 - cosx

is continuous ] Is the function f(x, y) = 3(x-2)y/(x-2)2 + y2 continuous at the point p(2/0) ? fully justify your answer if not continuous , find a point where f(x,y) is continuous