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圓的切線方程
Author:
Anthony OR 柯志明
Topic:
Circle
GeoGebra
New Resources
常见四边形是否是双心四边形
双心四边形
直線的斜率：水平變化 & 鉛垂變化
圓的切線方程
盈利與虧蝕
Discover Resources
(正)長方體
P3 下學期 Ex. 5 24小時報時制
projection02
竞猜游戏：说出图中角的大小
对角线交点
Discover Topics
Piecewise Functions
Real Numbers
Intersection
Ratios
Statistical Characteristics