Homework Help: calculus

Posted by fifi on Sunday, May 27, 2012 at 11:31pm.

The area enclosed between the x-axis, the curve y=x(2-x) and the ordinates x=1 and x=2 is rotated through 2π radians about x-axis.
(a)Calculate the volume of the solid revolution formed.
(b)Calculate the rotating area.
from this question what about he grap need to draw or not

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