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Protractor
Author:
Cheuk chi fu
GeoGebra
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第八周作业1
龙形曲线-分形龙
第八周作业2
百分數及其應用
科氏力 (Coriolis Force)
Discover Resources
外心
碎形
syps 邊長與三角形
诱导公式三（x轴对称关系）
翰林數學_2下_CH4-2_平行四邊形性質
Discover Topics
Special Points
Straight Lines
Addition
Multiplication
Differential Calculus