Question

Volume of solid of revolution?

Answer 1

The shaded regions R1 and R2, are enclosed by the graphs of f(x)= −x^2 and g(x)= −2^x.

D. Find the exact volume of the solid formed by revolving R2 about the x-axis. (No calculator approximations; don’t simplify.)

Answer 2

use the disk method

Answer 3

Walk me through it please.

Answer 4

the formula is
\[\int\limits_{a}^{b}\pi(R^2-r^2)dx\]
Where both R and r represent radius for circles formed
R is the bigger radius
r is the smaller radius

Answer 5

well washer method
but i always refer it as the special disk method

Answer 6

Is that formula called the area of annulus ?