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余弦定理 The Law of Cosines
Author:
HIRAIWA Koichi
GeoGebra
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standingwave-plus
円の伸開線
接点の作る円は内接円
平均変化率
直線の軌跡
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ホイヘンスの原理 波動 Wave motion
近似式
ハトメ返し
STEP 例題5
立方体(展開図)
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Vectors
Perimeter
Statistics
Subtraction
Interest Calculation