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王宏銘Proof93
Author:
郭亮偉
GeoGebra
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科赫雪花
第三周作业效果演示
撒针估算面积实验
球体的截面
盈利與虧蝕
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平行四邊形變奏II
math1
SSA為何不能保證全等
橢圓規Ellipsograph of Parallelogram
二倍角的正切公式的证明
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Geometric Distribution
Algebra
Cone
Tangent Line or Tangent
Unit Circle