1. The problem statement, all variables and given/known data Evaluate the following double integral: ∫ ∫ R sin (x/y) dA where R is the region bounded by the y axis, y=pi and x=y^2 2. Relevant equations as in problem statement 3. The attempt at a solution Well I started this question by drawing the area to be evaluated. From this I chose my limits of integration, however I feel this may be where I am going wrong. I used ∫ (upper y=pi lower y=0) dy and ∫ (upper x=y^2 lower x=0) dx. Im not sure if this is right first of all, and secondly, sin (x/y) is really tripping me up. This is because when I treat a variable as constant, where is it going. For example if I firstly evaluate sin (x/y) dy, i'm not sure of the result.