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Calculus III?

Find the volume of the wrinkled sphere.

Wrinkled sphere

rho = 1 + 0.2 sin(8 theta) sin(phi)

0 <= theta <= 2 Pi)

0 <= phi <= Pi

I need help with my integration.

S(S(S(?,rho,?,?),phi,0,Pi),theta,0,2*Pi)

1 Answer

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  • Anonymous
    1 decade ago
    Favourite answer

    If you were finding the volume of a normal sphere (rho =a, radius of sphere) the rho limits would just be rho =0 and a.

    Wouldn't you just use the wrinkled sphere equation as the upper rho limit?

    i.e. S_{phi=0}^{phi=pi}S_{theta=0}

    ^{theta=2pi}S_{rho=0}

    ^{rho=1+0.2sin(8theta)sin(phi)}

    rho^2*sin(phi) d(rho)d(theta)d(phi).

    Don't forget that dV = rho^2*sin(phi) d(rho)d(theta)d(phi) in spherical polar coordinates.

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