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加法定理(cos)
Author:
Bunryu Kamimura
プトレミーの定理を使った加法定理の証明。とても簡単!
GeoGebra
New Resources
standingwave-reflection
接点の作る円は内接円
standingwave-reflection-fixed
対数螺旋
円の伸開線
Discover Resources
一次函数(等角写像)
9点円の拡張の証明
banner
Rose curve
ちょくせんぬ
Discover Topics
Symmetry
Power Functions
Hypothesis Testing
Standard Deviation
Dilation