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GeoGebra
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GeoGebra
GeoGebra Classroom
GeoGebra
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2018-16
Author:
sschy
GeoGebra
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折扣
三角函数 的副本
第八周作业1
双心四边形
直線的斜率：水平變化 & 鉛垂變化
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過圓內c點的弦中點軌跡
How to draw a pentagon with ruler and compasses?
corresponding angles
劉虹圻 內心
test P1的副本
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Subtraction
Hyperbola
Limits
Surface
Rotation