f. If f is continuous on [a, b], then d d x f ( x ) dx ) = f ( x ) . a 15 g. If f and g are continuous functions on [a, b], the area of the region bounded between f and g is given by A = (f ( x ) - 8 ( x ) ) dx . 15 h. For any continuous function fon [a, b], the solid formed by revolving f about the x-axis has at least two integrals which gives its volume, one from cylindrical shells and one from using cross-sections that are either disks or washers. 5 14