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Ellipses and Hyperbolas

Video Summary:

An ellipse is the set of all points in a plane the sum of whose distances from two fixed points is constant. Each fixed point is called a focus of the ellipse. A hyperbola is the set of all points in a plane the difference of whose distances from two fixed points is constant. The two fixed points are called the foci of the hyperbola.

 


 
 

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