Chapter 9: Problem 38
Describe the solid satisfying the condition. \(x^{2}+y^{2}+z^{2}>4\)
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Chapter 9: Problem 38
Describe the solid satisfying the condition. \(x^{2}+y^{2}+z^{2}>4\)
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Geography Because of the forces caused by its rotation, Earth is an oblate ellipsoid rather than a sphere. The equatorial radius is 3963 miles and the polar radius is 3950 miles. Find an equation of the ellipsoid. (Assume that the center of Earth is at the origin and that the trace formed by the plane \(z=0\) corresponds to the equator.)
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