Find the area of the surface generated when the given curve is revolved about the given axis. y=9x-6, for 1<=x<=2; about the y-axis (Hint: Integrate with respect to y.)
Find the area of the surface generated when the given curve is revolved about the given axis. y=9x-6, for 1<=x<=2; about the y-axis. Hint: Integrate with respect to y.