1. The problem statement, all variables and given/known data A surface S is formed by rotating a quarter ellipse C about the X-axis. Write an integral that represents the volume enclosed by S. the ellipse is represented by two points, (2,1) at which t= pi/2, and (4,0) at which t=0. 2. Relevant equations Ellipse w/radii a,b, in x,y: x= x subscript 0 + a cos (t), y = y subscript 0 + b sin (t) Cartesian equation of ellipse. 3. The attempt at a solution Eek. I don't really know where to even start with this problem... any ideas?