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[学用] 勾股定理的几何原本证明2
Author:
acchu
GeoGebra
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异形操场
球体的截面
百分數及其應用
第八周作业2
第三周作业效果演示
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三角形四心
trigonometry1
No.5
雙曲線與斜率
平面截正立方体
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Vectors
Arithmetic
Calculus
Statistical Characteristics
Optimization Problems