Using calculus methods [antiderivatives] find the required areas for Q 15 to 17. Once the antiderivatives are shown the computed answer can be done on a calculator and the final answer shown (for Q 15 to 18) 15. Find the area under the curve y = (x + 1)(x -2) between the x- intercepts. 16. Find the area bounded by y = e2x - e-2x from x = 0 to x = 2 17. For the curves y = 10-x2 and y = find x2 (a) the x coordinates of the points of intersection (b) the area in the first quadrant between the two curves