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拋物線2--焦點法
Author:
13陳柏禎
拋物線2--焦點法
GeoGebra
New Resources
判斷球體
四邉形 (四年級) 教師版
畫出對稱圖形
兩位數除以一位數（一）
第八周作业
Discover Resources
初三奥赛：圆的切割线问题
Parallel lines
Simultaneous Equations (Linear and quadratic)
Lissajous curves(利薩如圖形)
二次函數圖像
Discover Topics
Set Theory
Complex Numbers
Circle
Polygons
Expected Value