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Focus and directrix of a parabola.
Author:
Scott Geyer
Topic:
Parabola
Focus and directrix of a parabola.
GeoGebra
New Resources
函數的單調性
Slope Between 2 Points (Phase 2)
兩位數的位值
z`]]
Billard V5.2 and V6
Discover Resources
#8 p.463
Arthur's puzzle'in kopyası
Quad-Parallel
Investigation for Sum of Interior Angles of Polygons
Diagonals of a rectangle
Discover Topics
Intersection
Trigonometry
Ratios
Secant Line or Secant
Quadratic Equations