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Redefining Trigonometry by a Unit Circle
Author:
Lam Yat Chun
Topic:
Trigonometry
GeoGebra
New Resources
平行線的斜率
垂直線的斜率
兩位數除以一位數（一）
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
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垂直平分線
circuit
希羅公式
負指數的計算
研究杠杆平衡条件
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Differential Equation
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Cone
Root
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