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一元二次方程式-應用問題(兩圓相切)
Author:
均一
GeoGebra
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拼砌四邊形
判斷球體
四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
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cos, sin 與單位圓
Quiz on Addition and Subtraction of Directed Numbers (2) 有向數加減測驗(2)
HW 1
摩天輪
Angles formed by parallel lines and transversal
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Trigonometry
Combinatorics
Multiplication
Fractal Geometry
Tangent Line or Tangent