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比一比看谁小
Author:
玖数
比一比看谁小
GeoGebra
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直角坐標平面上的旋轉變換
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
【案例】2018年全国1卷理科12题
找出對稱軸
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[問題] a² + b² = 1, (c-4)² + (d-2)² = 5,求 ad - bc 最大值?
旋转体
小题狂做P60No2
拼數咭
三位數除以一位數(一)
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Combinatorics
General Quadrilateral
Subtraction
Equations
Scalene Triangles