M maxandri New member Joined Dec 13, 2015 Messages 12 Dec 30, 2015 #1 I have this lim (x,y)->(0,0) (x^4+2y^4)/(x^3-y^3). If I do y=mx it goes to 0 but it's wrong. How can I solve it? Thank you
I have this lim (x,y)->(0,0) (x^4+2y^4)/(x^3-y^3). If I do y=mx it goes to 0 but it's wrong. How can I solve it? Thank you
P Prove It Junior Member Joined Dec 13, 2015 Messages 78 Dec 31, 2015 #2 maxandri said: I have this lim (x,y)->(0,0) (x^4+2y^4)/(x^3-y^3). If I do y=mx it goes to 0 but it's wrong. How can I solve it? Thank you Click to expand... I'd be inclined to convert to polars.
maxandri said: I have this lim (x,y)->(0,0) (x^4+2y^4)/(x^3-y^3). If I do y=mx it goes to 0 but it's wrong. How can I solve it? Thank you Click to expand... I'd be inclined to convert to polars.
I Ishuda Elite Member Joined Jul 30, 2014 Messages 3,342 Dec 31, 2015 #3 maxandri said: I have this lim (x,y)->(0,0) (x^4+2y^4)/(x^3-y^3). If I do y=mx it goes to 0 but it's wrong. How can I solve it? Thank you Click to expand... Well, except for m=1
maxandri said: I have this lim (x,y)->(0,0) (x^4+2y^4)/(x^3-y^3). If I do y=mx it goes to 0 but it's wrong. How can I solve it? Thank you Click to expand... Well, except for m=1
