anyone knows from which calculus or book is this? section 6.3 volume of revoluti

Question

anyone knows from which calculus or book is this?
section 6.3 volume of revolution

The method of cylindrical shells Volume of Revolution: The Shell Method The solid obtained by rotating the region under y f(x) over the interval [a, b] about they-aris has volume v=2n/ (radius)(height of shell)d-2n/ xf(x)dx | L2] EXAMPLE 1 Find the volume V ofthe solid obtained by rotating the region under the graph of f(x) = 1-2x + 3x2-2x3 over [0, 1] about the y-axis. Solution The solid is shown in Figure 4. By Eq.(2). o 30 f(t) v=2m/b(radius)(Height of shell) d-Zr/bx(f(x)-g(x)) dx13 f(x) glx)

Explanation / Answer

can't tell you about book just looking at one page but i can tell you this is problem of calculus I.

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