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please answer step by step clearly. Thanks.. 7. The area enclosed between the x axis, the curve y = x(x - 2) and the ordinates

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please answer step by step clearly. Thanks.. 7. The area enclosed between the x axis, the curve y = x(x - 2) and the ordinates x=1 and x=2 is rotated through 2n radians about x axis. Calculate a. The rotating area and the coordinates of its centroid b. The volume of the solid of revolution formed and the coordinates of its centre of gravity

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