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诱导公式3
Author:
sschy
GeoGebra
New Resources
活动三:应用性质
百分數及其應用
龙形曲线-分形龙2
龙形曲线-分形龙
常见四边形是否是双心四边形
Discover Resources
Dividing a Trapezium
餘弦定理的圖形證明
模擬圓規
ie 5
三節棍
Discover Topics
Quadratic Functions
Angles
Area
Linear Programming or Linear Optimization
Fractions