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基電-10-9
Author:
歐鎮寬
GeoGebra
New Resources
盈利與虧蝕
常见四边形是否是双心四边形
科氏力 (Coriolis Force)
正方形雪花图案
双心四边形
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兩個點波源產生的波紋
交錯弓形圓周角
拋物線軌跡(1)
Locus: P equidistant from two fixed points
雙曲線2-焦點法
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Diagrams
Numbers
Perimeter
Similar Triangles
Geometric Transformations