Concept explainers
Use the ellipsoid
(a) Find an equation of the elliptical trace in the plane
(b) Find the lengths of the major and minor axes of the ellipse in part (a).
(c) Find the coordinates of the foci of the ellipse in part (a).
(d) Describe the orientation of the focal axis of the ellipse in part (a) relative to the coordinate axes.
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Calculus: Early Transcendentals, Enhanced Etext
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