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Mathematics
OpenStudy (anonymous):

use the shell method to find the volume of the solid below the surface of revolution and above the xy-plane. The curve z=3sin(y), (o<=y<=pi), in the yz plane is revolved about the z-axis

OpenStudy (anonymous):

it is number 3 on the attached file

OpenStudy (anonymous):

is that 3sin(theta)?

OpenStudy (anonymous):

i mean 3 sin (y)

OpenStudy (anonymous):

I get this -(9/2)*Pi*(cos(Pi)*sin(Pi)-Pi)

OpenStudy (anonymous):

intigrate pi*(3*sin(y))^2 from 0 to pi with respect to y

OpenStudy (anonymous):

44.4132198

OpenStudy (anonymous):

thank you!!!

OpenStudy (anonymous):

is it right?

OpenStudy (anonymous):

actually its 6pi squared

OpenStudy (anonymous):

grr it is of by 14

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