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轨迹与最值问题17
Author:
万超杰
GeoGebra
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第八周作业2
常见四边形是否是双心四边形
第三周作业效果演示
三角函数 的副本
第八周作业3
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根據百分率找數量（一）: 例4
畢式定理 (08)
垂心軌跡
Perimeter
test
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Perimeter
General Quadrilateral
Rotation
Cube
Dilation