sketch the region of integration and change the order of integration. Please do #39-42 THANK YOU!!!
37-42·Sketch the region of integration and change the order of integration. 2 (4 37.11.cf(x, y) dx dy 37. f(x, y) dx dy 38·LLf(x,y) dy dx 0 Jo (cos x f(x, y) dy dx 39. 2 In 41·RT'xf(x, y) dy dx 42. O Jarctan x