Problem 2 Evaluate the integral over the domain D pictured. Vx2 + 3 dA. 2 -1 -1 52 Problem 3 Sketch an example of a region in the plane for each of the following cases. Do not use any example more than once. 3.1) Horizontally simple but not vertically simple. 3.2) Vertically simple but not horizontally simple. 3.3) Both horizontally and vertically simple. 3.4) Radially simple but not horizontally simple nor vertically simple. 3.5) Radially simple and horizontally simple. 3.6) Radially simple and vertically simple. 3.7) Not radially, horizontally, or vertically simple