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椭圆的两条垂直切线的交点轨迹
Author:
istone
Topic:
Ellipse
,
Geometric Transformations
GeoGebra
New Resources
球体的体积推导
畫出對稱圖形
兩組對邊相等的四邊形
兩位數加法
判斷球體
Discover Resources
球面與截平面的關係
圓的平移
测试 = =
雙曲線
圓周_心算題02
Discover Topics
Subtraction
Pie Chart or Circle Chart
Conditional Probability
Prism
Histogram