Problem 9.29. Compute the volume of the solid obtained by revolving around the x = 3 by 27 (i.e. a full rotation) the region between the graph of y = 2 - x2 and y = x2. and for x 2 0. Problem 9.30. Compute the volume of the solid obtained by revolving around the y-axis by 27 (i.e. a full rotation) the region between the graph of y = 2 - x2 and y = x2. and for x 2 0. Problem 9.31. Compute the volume of the solid obtained by revolving around the y = -1 by 27 (i.e. a full rotation) the region between the graph of y = 2 - x2 and y = x2. and for x 2 0