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SSA探究1
Author:
林峰
GeoGebra
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常见四边形是否是双心四边形
盈利與虧蝕
平行線的判定
第八周作业1
科赫雪花
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一般線性變換
正弦定理的验证
区域积分例子
gjc090b13 二次函數的平移
Pappus Chain
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Diagrams
Curve Sketching
Triangles
Differential Calculus
Polygons