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the definition of ellipse
Author:
丁明智
GeoGebra
New Resources
判斷球體
兩位數除以一位數（一）
第八周作业
異分母分數減法
四邊形的特性
Discover Resources
a sin(bx+c) + d 的圖形
黃金螺線
線性規劃
barara magic stick
第六次:20190412
Discover Topics
Cuboid
Polygons
Triangles
Tangent Line or Tangent
Planes