Please help with D

Work through the following steps to evaluate (z2 + 3) dx. a) We know that a = 0 > and b = 4 b) Using n subintervals, Ax = c) Assume that the sample points in each interval are right endpoints. Find the following sample points: 1 = In general, the ith sample point is Ci = Note: your answer will be an expression in terms of i and n. d) Now find the sum of the areas of n approximationg rectangles. Note: your answer will be an expression in terms of n. If( x2 ) Ax = e) Finally, find the exact value of the integral by letting the number of rectangles approach infinity. ( 22 + 3) dx - lim If( xi)Ax = 33.3 i=1