i need help in solving the below problems

f( ) = 2 Let R be the shaded region in the first quadrant enclosed by the graphs of f (x) =2 and g (x) = In(x) as shown in the figure. (a) Find the volume of the solid generated when R is revolved around the y axis (b) Find the volume of the solid generated when g(x) = In (x) R is revolved about the horizontal line y = 3 (c) Find the volume of the solid generated when R is revolved about the vertical line x = -2