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螢橋國中
GeoGebra
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兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
平行線的斜率
多邊形的面積
斜率的值
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季老师的数学实验室
Sequence指令練習(二維4)
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
線型函數
Locus (Two points 2)
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Tangent Line or Tangent
Geometric Distribution
Complex Numbers
Perimeter
Arithmetic Operations