Re: Functions of two variables-doubt!

Posted by Noel on Apr 20, 2014; 2:28pm
URL: http://discussion-forum.276.s1.nabble.com/Functions-of-two-variables-doubt-tp7587463p7587477.html

Hmm..the answers seem to be incorrect because if the answer for the first question is x^2+y^2<=2 then this is the region inside the circle centered at origin with radius under-root 2..hence the point (0,0) must be in the domain..but substituting these values in the expression under-root(x^2+y^2-1) we get root(-1) which is not defined in the real number system