Q. Find the volume of the solid generated when the region enclosed by y=−x+1,y=0, and x=2 is revolved about the x-axis.
Identify Curves and Limits: Identify the curves and limits for integration.The region is bounded by y=−x+1, y=0, and x=2. The solid is revolved around the x-axis, so we use the disk method.
Set Up Integral for Volume: Set up the integral for the volume.The volume V of the solid of revolution is given by the integral of π times the square of the radius of the disks. The radius here is the y-value, which is −x+1, and the limits of integration are from x=−1 to x=2.V=π∫x=−1x=2(−x+1)2dx
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