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向量求和动画演示

Author:孟洪刚

New Resources

  • 小数 的副本
  • 算柱 (兩位數)
  • 近似值:有效數字
  • 長方體平面投影 (Codex版)
  • 畫出對稱圖形

Discover Resources

  • Quiz on Addition and Subtraction of Directed Numbers (1) 有向數加減測驗(1)
  • 分數減法
  • ie 7
  • 週長面積皆相等的不全等三角形
  • 夹逼法确定无理数根号2的范围

Discover Topics

  • Curve Sketching
  • Rectangle
  • Optimization Problems
  • Power Functions
  • General Quadrilateral
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