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Sine Formula 正弦公式
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
画直线等分三角形的面积
異分母分數減法
三位數除以一位數（二）
判斷球體
畫出對稱圖形
Discover Resources
cos, sin 與單位圓
利用圖解法解方程
man1
EARTH01
双曲线交抛物线
Discover Topics
Secant Line or Secant
Means
Fractal Geometry
Mathematics
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