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九点円

Author:ahhj45

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standingwave-plus
sine-wave
等積変形2
正１７角形　作図　regular 17-gon
接点の作る円は内接円

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√a＋√bの説明の図
y=sinx/x
y=ax^2増加減少
三角錐01
二次関数　場合分け

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Area
Pythagoras or Pythagorean Theorem
Dilation
Percentages
Means

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