Coordinate geometry › Parabolas, ellipses and hyperbolas

Tangents to an ellipse

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Arches Area of an ellipse Areas on a parabola Chords of an ellipse Eccentricity Ellipse: foci and directrix Extremes on conics Hyperbola: asymptotes Hyperbola: foci Intersections of conics Largest triangle in an ellipse Midpoints of chords Parabola: focus and directrix Products of distances along chords