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円と楕円
Author:
Bunryu Kamimura
Topic:
Ellipse
楕円をつくる二つの円。焦点もわかります。
GeoGebra
New Resources
アステロイド
sine-wave
6章⑥三角柱の展開図
接点の作る円は内接円
standingwave-reflection-free
Discover Resources
2次関数の平行移動(2)
∫e^xdx
OQ・OP=R^2
反比例のグラフ
二次方程式-箱の組み立ての問題
Discover Topics
Similar Triangles
Isosceles Triangles
Curve Sketching
Geometric Mean
Probability