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赵爽弦图
Author:
林峰
GeoGebra
New Resources
异形操场
第八周作业
双心四边形
直線的斜率：水平變化 & 鉛垂變化
科氏力 (Coriolis Force)
Discover Resources
Key stage 1
Homework7
ctr to mid perd
第六次:20190412
平面截圆锥面
Discover Topics
Special Points
General Quadrilateral
Vectors 3D (Three-Dimensional)
Geometric Transformations
Matrices