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音樂和弦表
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+x sir
GeoGebra
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龙形曲线-分形龙
圓的切線方程
三角函数 的副本
直線的斜率：水平變化 & 鉛垂變化
直線的斜率
Discover Resources
quadrilaterals 3
均分除法（整數÷整數）
Internal tangent
百分數化分數
極線對偶定理 / polar duality theorem 的複本
Discover Topics
Boxplot
Quadratic Functions
Hyperbola
Linear Equations
Standard Deviation