Sketch the domain D bounded by y = x², y = 1x², and y = 9x. Use a change of variables with the map x = uv, y = u² to calculate -1 Jy¹dx dy This is an improper integral since f(x, y) = y ¹ is undefined at (0, 0), but it becomes proper after changing variables. -1 Spy¹dx dy =
