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Mamikon's theory/楕円の周囲の接線団
Author:
Naofumi Horio
GeoGebra
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直線の軌跡
接点の作る円は内接円
平均変化率
小テスト
standingwave-reflection
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点の存在範囲（3Dボタン式）
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直線のベクトル方程式（点Pの存在範囲）
Find Similar with Snapping
最大値・最小値問題分析_軸が動く
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Quadratic Functions
General Quadrilateral
Correlation
Similarity Transformation or Similarity
Similar Triangles