6.4 Volume by Shells

There are many problems where the disk & washer method is perfectly effective. But in some instances you’ll need to know about the shell method for computing the volume of a solid of revolution. This video really demonstrates how shells work: The TL;DR is that it is easier to use the washer method for finding the […]

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6.3 Volume by Slicing

General Slicing Method Suppose a solid object extends from x = a to x = b and the cross section of the solid perpendicular to the x-axis has an area given by a function A that is integrable on [a, b]. The volume of the solid is: So I just wanted to chime in a particularly […]

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