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Author:
Galen_1
GeoGebra
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兩組對邊相等和有直角的四邊形
兩位數加法
找出對稱軸
第八周作业
三位數除以一位數(二)
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已知橢圓 x^2/a^2+y^2/b^2=1 (a>b>0)
中點軌跡(動點在兩圓上)
題二
橢圓1--四圓心近似法
椭圆的生成
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Step Functions
Mathematics
Statistics
Similar Triangles
Differential Equation