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正方形
Author:
何嘉驹
GeoGebra
New Resources
圓周公式的應用
漂亮的摇摆曲线
祖冲之的期望：内棋与外棋
直線的斜率
圓的切線方程
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waaachen
圓圓求切圓
測試
切線性質
虎牙直播
Discover Topics
Planes
Rhombus
Matrices
Prism
Piecewise Functions