Question: Let f ( x , y ) = x y x 2 + y 2 . Find lim ( x , y ) ( 0

Let f(x,y)=xyx2+y2. Find lim(x,y)(0,0)f(x,y) or determine it does not exist.
Let f ( x , y ) = x y x 2 + y 2 . Find lim ( x ,

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