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GeoGebra
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Visualizing a System of Linear Equations
Author:
Koo Wing Yan
Visualizing a System of Linear Equations
GeoGebra
New Resources
多邊形的面積
祖冲之的期望：内棋与外棋
斜率的值
讀磅
漂亮的摇摆曲线
Discover Resources
正六面體
樞紐內容
start and end clock face
练习及小结
曲面指令练习（柱球转化）