Question

find the set of points where the function is continuous:

f(x,y) = (x-y)/(1+x^2 + y^2)

Answer 1

the denominator is defined everywhere, and the numerator is coninuous, so it looks like all reals

Answer 2

thanks!

Answer 3

welcome!

Answer 4

That is correct, but I think you meant to say the denominator is non-zero everywhere.

Answer 5

yep :)