The answer to the part (a) is right . However, as to part(b), you miss some parts . The domain of the function g is , which can be dived into three parts:
Have this question, and I am really unsure about function in multiple variables..
Find the domain of each of the following functions and sketch it, showing clearly whether any parts of the boundary are included in the domain
So for equation (a) obviously which I have reduced to so that i can graph it, and the boundry of the graph is included in the domain.
For part (b) it is similiar because isn't defined, so , so this can be reduced to so that it can be graphed, and the boundry of the graph isn't in the domain?