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椭圆的两条垂直切线的交点轨迹
Author:
istone
Topic:
Ellipse
,
Geometric Transformations
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
拼砌四邊形
兩位數除以一位數（一）
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
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三角形內接正方形
Triangle fixed height
代數運算
正整數的指數律練習
阿波羅圓
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Mode
Difference and Slope
Step Functions
Power Functions
Histogram