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No.18
Author:
Billy Cheung
GeoGebra
New Resources
漂亮的摇摆曲线
探究三角形的全等條件
【案例】2018年全国1卷理科12题
常见四边形是否是双心四边形
祖冲之的期望:内棋与外棋
Discover Resources
Projection
deductive geometry
圓錐曲線截痕 to 定義式
两平面夹角
餘數處理2
Discover Topics
Derivative
Linear Regression
Parallelogram
Geometric Mean
Difference and Slope