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7.2A Volumes by Revolution: Disk/Washer Method. Ex 1 Find the volume of the solid obtained by rotating the region under the curve about the x-axis from 0 to 1. Ex 2 Find the volume of the solid obtained by rotating the region enclosed by the curves y = x 2 & y = x about
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Ex 1 Find the volume of the solid obtained by rotating the region under the curve about the x-axis from 0 to 1.
Ex 2 Find the volume of the solid obtained by rotating the region enclosed by the curves y = x2 & y = x about a)y –axis b)y = 2.
Disk: • Washer:
Ex Find the volume of the solid obtained by rotating about the y-axis the region bounded by y = 2x2x3 and y = 0.