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Vector in R2
Author:
sealion1215
GeoGebra
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【案例】2018年全国1卷理科12题
直角坐標平面上的旋轉變換
判斷球體
第八周作业
兩組對邊相等和有直角的四邊形
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椭圆两个焦点与椭圆上点的连线
勒洛三角形頂點C軌跡
褶正三角形
正弦函数图象
一次函数的引入
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Intersection
Pyramid
Constructions
Statistics
Diagrams