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對稱成分(零序.正序.負序)
Author:
黃斌
GeoGebra
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判斷球體
錐體建築師
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
第八周作业
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拋物線標準式101.11.22
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
双曲线的参数方程
內輪差...
乘法训练
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Rectangle
Incircle or Inscribed Circle
Stochastic Process or Random Process
Hyperbola
Right Triangles