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聯立方程式
Author:
曾己泉
GeoGebra
New Resources
盈利與虧蝕
龙形曲线-分形龙
常见四边形是否是双心四边形
第三周作业效果演示
正方形雪花图案
Discover Resources
橢圓軌跡
六面體與八面體轉換
廣義三角：tan
circular motion
勾股定理证明演示--分割股边
Discover Topics
Trigonometry
Geometric Distribution
Sphere
Probability
Function Graph