Question: f ( x , y ) = { x y x 2 - y 2 x 2 + y 2 i f ( x ,

f(x,y)={xyx2-y2x2+y2if(x,y)(0,0)
0,if(x,y)=(0,0)
Calculate delfdelx(0,y) and delfdely(x,0)
f(x,y)={xyx2-y2x2+y2if(x,y)(0,0) 0,if(x,y)=(0,0) Calculate delfdelx(0,y) and delfdely(x,0)

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