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正五角形の作図
Author:
Naofumi Horio
GeoGebra
New Resources
standingwave-reflection-free
コイン投げと樹形図
sine-wave
目で見る立方体の2等分
standingwave-reflection-fixed
Discover Resources
Measureing trigonometric function
e^(iθ)=cosθ+isinθ
数学3 円の接線
二重おうぎ形の面積（分割）
No,39-問1
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Prism
Mathematics
Orthocenter
Curve Sketching
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