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托勒密定理
Author:
連琨銘
GeoGebra
New Resources
盈利與虧蝕
常见四边形是否是双心四边形
球体的体积推导（优化版）
科氏力 (Coriolis Force)
圓的基本性質
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由拉線80209傅筱茿螢橋國中
第1章知识结构框图
vector stack pile
圈柱(可調整內半徑、外半徑，柱高)
百分數、分數和小數互化
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Probability
Unit Circle
Optimization Problems
Geometric Mean
Integral Calculus