1. 3 a. Use the Left Hand Rule with 5 rectangles to approximate / (a:2 :c)d:c. Showyour 3 work. 3 b. Use the Fundamental Theorem to compute the exact value of/ (a:2 w)dm. Show 3 your work. How close is the approximation to the exact value? 2. Complete the following computation to \"/3 cos(m) dm. 7r/4 1/4sin(:z:) + 2 Set 1:, = 4si11(a:) + 2. Then do, = Idm. \"/3 costs) _dm=/ Id.\" \"/4 '/4sin(:r:) + 2 =I = a. Sketch the region bounded by the curves :9 = m2 and y = a: + 2. Label all intersection points. b. Expressed the area bounded by the curves as an integral and compute the area. Us: exact answers