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任务13：随机转盘
Author:
陈丽婷
GeoGebra
New Resources
科氏力 (Coriolis Force)
比較五件物件的重量
撒针估算面积实验
常见四边形是否是双心四边形
平行線的判定
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二次函數：一般式轉標準式 (配方法)
[問題] 線在面上
垂直3
柯西不等式 (4)
-3/2 ≤ cosα + cosβ + cosγ ≤ 3
Discover Topics
Trigonometric Functions
Perimeter
Geometric Distribution
Linear Functions
Rotation