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因式分解二次方程
Author:
Chris Cheng
GeoGebra
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平行線的斜率
讀磅
空间中两直线的位置关系
漂亮的摇摆曲线
科氏力 (Coriolis Force)
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平行四邊形
vector stack pile
DSE Circle-ACT03C Relationship Between Arcs and Angles at Circumference
箭頭引導法計算文字乘以文數字
根據百分率找數量（二）: 例3的副本
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Power Functions
Conic Sections
Numbers
Coordinates
Correlation