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Proof2
Author:
郭亮偉
GeoGebra
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盈利與虧蝕
折扣
第八周作业1
撒针估算面积实验
第八周作业3
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陳人瑜proof81
Homework7
三角形重心、垂心、內心、外心、尤拉線、九點圓圖解
a sin(bx+c) + d 的圖形的副本
人教版初中数学教材案例GeoGebra制作系列教程（七年级下册）1-对顶角和邻补角的性质探究
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Triangles
Optimization Problems
Reflection
Translation
Power Functions