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入射角・反射角２
Author:
matsubara
GeoGebra
New Resources
アステロイド
円の伸開線
standingwave-reflection-free
小テスト
standingwave-plus
Discover Resources
y=x^2の区分求積法
前者
Frank Burkの証明
sin 関数
波の反射（固定端反射、自由端反射）
Discover Topics
Combinatorics
Arithmetic Operations
Fractal Geometry
Planes
Cosine