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Use spherical coordinates. find the volume of the solid that lies within the sphere x2 + y2 + z2 = 81, above the xy-plane, and below the cone z = x2 + y2 .
Use spherical coordinates. find the volume of the solid that lies within the sphere x2 + y2 + z2 = 81, above the xy-plane, and below the cone z = x2 + y2 .