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特別な三角比
Author:
Hiroki Tsuda
GeoGebra
New Resources
sine-wave
円の伸開線
正１７角形 作図 regular 17-gon 2
standingwave-reflection
接点の作る円は内接円
Discover Resources
九点円と内接円
副産物
いろいろな行列を作ってみよう
平行線と角
空間ベクトル1次独立と分解
Discover Topics
Probability
Dilation
Line Segment
Rectangle
Kite