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数学I 2次関数の符号(2)

Author:田畑吉栄

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目で見る立方体の2等分
sine-wave
standingwave-plus
サイクロイド
接点の作る円は内接円

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正弦函数
フィボナッチ数のパラドックス2
平行四辺形の条件
方冪の定理２
四角形に内接する楕円の作図

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Reflection
Trigonometric Functions
Plane Figures or Shapes
Vectors
Ellipse

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