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正弦定理
Author:
Bunryu Kamimura
a/sinA=b/sinB=c/sinC=2Rを正弦定理という。
GeoGebra
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目で見る立方体の2等分
フーリエ級数展開
standingwave-plus
正17角形 作図 regular 17-gon
6章⑥三角柱の展開図
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わっかで楕円を作図An oval by string of a circle
三角関数の値
三角形と比の逆の証明2
垂線の作図1
面心立方格子
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Kite
Conic Sections
Similarity Transformation or Similarity
Binomial Distribution
Quadratic Equations