of the cylindrical solid bounded by amlal 12. Fir. y. ) - xit yi Eck; o is the surface of the solid bounded by the paraboloid 3 - 1 - -y and the by 25. Le plane. 13. For, y, 2) = x'i+ yj+ 2'k: o is the surface of the cylin- W drical solid bounded by * 2 + y? = 4. 2 - 0, and z - 3. 14. F(x. y. 2) = ( + >itxj - (2xz + y)k: o is the sur- face of the tetrahedron in the first octant bounded by x+y + z = 1 and the coordinate planes. 15. F(x, y. z) = (x3 - e))i+ (3 + sinz)j + (2 -xy)k. 26. where o is the surface of the solid bounded above by Z = /4 - x2 - y2 and below by the xy-plane. [Hint: Use spherical coordinates.] 27-3