1. The problem statement, all variables and given/known data Evaluate [tex]\int[/tex][tex]\int[/tex]e^xy dA, where R is the region enclosed by the curves: y/x=1/2 , y/x=2, xy=1, and xy=2. 2. Relevant equations None? 3. The attempt at a solution I have the region graphed and I'm currently working on acquiring the change of variables functions in x and y. I have attempted to solve the system of equations with u=y/x and v=xy to obtain these but I'm having some trouble. If I could be pointed in the right direction I would be greatly appreciative! Thanks.