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四位數
Author:
Tree
GeoGebra
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美國國旗 (Codex, 2026.10.06)
世界平面地圖 (Codex╱2026.10.07)
小数 的副本
直角坐標平面上的旋轉變換
畫出對稱圖形
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極座標方程式
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5,求 ad - bc 最大值?
螢橋國中-林安哲02
三角形
海螺
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Numbers
Linear Regression
Similar Triangles
Sequences and Series
Secant Line or Secant