Evaluate the following sums. 20 (a) 3 (b) (c) (31+2) - QUESTION 2 Use sum of rectangles to estimate the integral of ((X) = X" over the interval (0,3) under the following conditions (a) Use subdivision of the interval (0,3) into 3 equalsubintervals and choose the right end points X; _ , to compute value f(X/ _ 1) for the interval (X, - 1, X)). Answer - (b) Use subdivision of the interval (0,3) into 3 equal subintervals and choose the left end points X, to compute the value f(x) for the interval (X, _- 1, XD). Answer =