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数学I 2次関数の符号(2)
Author:
田畑吉栄
GeoGebra
New Resources
standingwave-plus
等積変形2
standingwave-reflection-free
フーリエ級数展開
直線の軌跡
Discover Resources
Ex_86
９点円（三角形の不思議な円）
２次関数のグラフ
円周角2
ラグランジュの乗数法3
Discover Topics
Combinatorics
Orthocenter
Special Points
Continuity
Subtraction