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三角比の中心角と高さ・斜辺

Author:住田靖弘

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サイクロイド
sine-wave
接点の作る円は内接円
二次曲線と離心率
直線の軌跡

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外接円→円周角の定理 Theorem of the angle of circumference
２つの変数を含む文字式の感じ
錯視７
直線のベクトル方程式
課題　五角形→三角形

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Vectors
Subtraction
Centroid or Barycenter
Confidence Interval
Solids or 3D Shapes

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