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Focus-Directrix Definition of an Ellipse
Author:
Norm Prokup
Topic:
Ellipse
GeoGebra
New Resources
函數的奇偶性
Billard V5.2 and V6
兩位數的位值
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
apec
Discover Resources
Geometry - Points of Concurrency
Transformations of Graphs (a, h, k)
Hexagon
Ian's Dynamic Unit Circle
Hyperboloidal gears
Optisches Gitter
Discover Topics
Scalene Triangles
Function Graph
Special Points
Indefinite Integral
Trapezoid