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第12届美国中学生数学邀请赛题
Author:
王俊辉
GeoGebra
New Resources
Nested spiral octagon
Earth with coastline
Claude 解幾何題
世界平面地圖 (Codex╱2026.10.07)
幾何作圖題：切三圓（題目）
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n等分點
等值分數圓餅圖
全等三角形
翻轉方塊(雙開)
指数函数性质和图象平移
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Normal Distribution
Sphere
Exponent
Diagrams
Geometry