Question

What is the domain of `f(x,y)= arcsin(x^2+y^2-5)Ln(x+2y+1)`?

Answer 1

`-1 le x^2+y^2-5 nn x^2+y^2-5 le 1 nn x + 2y + 1 > 0`

Explanation:

The feasible region for `f(x,y)= arcsin(x^2+y^2-5)Ln(x+2y+1)` is given by

`-1 le x^2+y^2-5 nn x^2+y^2-5 le 1 nn x + 2y + 1 > 0`

which corresponds to the region plotted in light blue.