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Author:
wangyiyao
GeoGebra
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活动三：应用性质
双心四边形
直線的斜率：水平變化 & 鉛垂變化
常见四边形是否是双心四边形
第八周作业
Discover Resources
Rotation 旋轉變換
Locus (Segment)
三角函数图像变换动画演示
椭圆的参数方程的副本
RLC並聯諧振
Discover Topics
Limits
Division
Histogram
Vectors
Right Triangles