need help with this

(d). The diagram below shows the graph of the curvey = 2-* Y=2 The region bounded by the curvey's 2 , the x -axis and the lines x = 0 and x = k, where k > 0, is rotated about the x -axis to form a solid. (i) Write an integral that gives the volume of the solid and then use the trapezoidal rule with 2 subintervals to show that an approximation of the volume is given by V- 4 ( 1 +2 1 ) (ii) By evaluating the integral you wrote down in part (i) show that the exact volume is given by V = In 4 (1-4* )