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OpenStudy (anonymous):
Please help!! f(x,y) = { (x^3y-xy^3)/(x^2+ y^2) , (x,y)cantbe0 { 0 , (x,y)=(0,0) Are the functions fx(x,y) and fy(x,y) continuous on R2? Is f differntiable at (0,0)? I just need to know which steps to take to figure it out ..
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