Q: limit of f(x,y)=(x^3-y^3)/(x^2+y^2) as (x,y) -> (0,)? What I tried: 1. Picked 0 as L 2. We know x^2+y^2 < d^2 3. and lxl=<d and lyl=<d I can't think of an inequation needed Any help would be greatly appreciated. Thanks
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Originally Posted by 6DOM Q: limit of f(x,y)=(x^3-y^3)/(x^2+y^2) as (x,y) -> (0,)? What I tried: 1. Picked 0 as L 2. We know x^2+y^2 < d^2 3. and lxl=<d and lyl=<d I can't think of an inequation needed Any help would be greatly appreciated. Thanks I think you mean inequality. As try
Originally Posted by Danny I think you mean inequality. As try I'm not sure I understand you. I thought we needed some kind of inequality that looks like l(x^3-y^3)/(x^2+y^2)l =< so that we can set delta
Originally Posted by 6DOM I'm not sure I understand you. I thought we needed some kind of inequality that looks like l(x^3-y^3)/(x^2+y^2)l =< so that we can set delta If then then
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