You have to show for which values of the limit of as tends to is worth .
By the way I think there is a typo error. It shows " " while I believe it should be " " which is different.
I am really having a hard time understanding these concepts in multivariable calculus and just do not know where to begin.
Here I am trying to find all the values of alpha > 0 such that the curve is continuous at the point (0,0). See the curve below...
Any help on where to start or suggestions would be greatly appreciated!