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[洋葱] 三角函数与圆综合问题-下(0445)
Author:
acchu
GeoGebra
New Resources
祖冲之的期望：内棋与外棋
第八周作业
活动三：应用性质
盈利與虧蝕
第八周作业2
Discover Resources
rainbow
Roger Test Draw
愛心立體圖
平行四边形变形
正方形纸片剪出正三角形（顶点在边上）
Discover Topics
Similar Triangles
Fractions
Intersection
Conic Sections
Continuity
