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２次関数（一般形・係数の変化）
Author:
Tetsuya Akazawa
GeoGebra
New Resources
standingwave
sine-wave
standingwave-plus
斜めドップラー
円の伸開線
Discover Resources
三角形の合同
クリア_Clear234
外接円は傍心三角形の九点円
二次方程式の利用4 のコピー
２年p.150
Discover Topics
Area
Difference and Slope
Diagrams
Distributions
Definite Integral