Challenge Construction

Author:Elizabeth McCollum

It seems that when D is inside the circle, the locus of C and E is an ellipse. It seems that when D is outside the circle, the locus of C and E is a hyperbola. It also seems that A and D are the foci of the ellipse.

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探究長方形對角線上的正方形數目
centripetal force
רישום חופשי
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Matrix Representation of Transformations
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Division
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