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円の面積はなぜ半径を2回かけるのか？ver4
Author:
T.Fujimaki
GeoGebra
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小テスト
等積変形2
正１７角形 作図 regular 17-gon 2
standingwave-reflection-fixed
接点の作る円は内接円
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応用例題5
数学Ⅲ回転体＆体積MT01
Copy of 空間ベクトルの分解(2)
数学Ⅲ 分数不等式
分数あてクイズ
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Perimeter
Trigonometry
Geometric Mean
Area
Differential Equation