Set up and evaluate the integral for the area of the Set up the integral in the form shaded region. b A = I[f(x) g(x)]dx for the area of the a shaded region. B A= l [Didx D Evaluate the integral to nd the area of the shaded region. E (Type an integer or a simplied fraction.) After a long study, tree scientists conclude that a eucalyptus tree will grow at the rate of 0.7 + 4/ (t + 3)3 feet per year, where t is the time (in years). (a) Find the number of feet that the tree will grow in the second year. (b) Find the number of feet the tree will grow in the third year. E} (a) The total number of feet grown during the second year is D. (Round to three decimal places as needed.) (b) The total number of feet grown during the third year is |:|ft. (Round to three decimal places as needed.)