Estimate 11 cos[z2) dz using (a) the Trapezoidal Rule and (b) the Midpoint Rule, each with n = 4. Give each answer con'ect to ve decimal places. (3)111 = C] (:1th = C] (c) By looking at a sketch of the graph of the integrand, determine for each estimate whether it overestimates, underestimates, or is the exact area. '_? v 1.T4 '? V 2- M4 ([1) What can you conclude about the true value of the integral? D A. T4