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M6_Ch9.2 三角恆等式
Author:
Franky_0219
Topic:
Trigonometric Functions
GeoGebra
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平行線的判定
第三周作业效果演示
盈利與虧蝕
斐波那契螺旋弧线（表格法-可动态调节）
折扣
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平行四邊形有甚麼特性？
固定三角形的條件−題4
angle 123
boxplots/histogram (Africa and Asia)
Twghmkc_P5分數乘法
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Sequences and Series
Rotation
Tangent Line or Tangent
Ellipse
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