Where D is the domain given by: $ D:=\{(x,y) : x \geq 0, -1 \leq y \leq 2, 4 \leq x^2 + y ^2 \leq 16 , 1\leq x^2 - y^2 \leq 9\} $
I'm not sure what change of variables to use here.
Where D is the domain given by: $ D:=\{(x,y) : x \geq 0, -1 \leq y \leq 2, 4 \leq x^2 + y ^2 \leq 16 , 1\leq x^2 - y^2 \leq 9\} $
I'm not sure what change of variables to use here.