Use a parametrization to express the area of the surface as a double integral. Then evaluate the integral. The lower portion cut from the sphere x2 + y2 + Z2 = 25 by the cone 2 = 4x2 + y2 Let u = 8 and v = q: and use spherical coordinates to parametrize the surface. Set up the double integral to nd the surface area. [I( )dudv (Type exact answers.) Use a parametrization to express the area of the surface as a double integral. Then evaluate the integral. The portion of the cylinder x2 + y2 =16 between the planes 2 = 5 and z = 6 Let u = z and V: 9 and use cylindrical coordinates to parameterize the surface. Set up the double integral to nd the surface area. [I( )dudv (Type exact answers.)