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zhengming

Author:江卫军

New Resources

  • Earth with coastline
  • 近似值:有效數字
  • 世界平面地圖 (Codex╱2026.10.07)
  • 直角坐標平面上的旋轉變換
  • 美國國旗 (Codex, 2026.10.06)

Discover Resources

  • 線段上分點軌跡(橢圓)
  • Rectangle_03
  • Relations Among Trigonometric Ratios 三角比的關係
  • 第四冊4-1習題8(1)
  • circle

Discover Topics

  • Real Numbers
  • Polygons
  • Prism
  • Reflection
  • LCM and GCD
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