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20171016試行
Author:
MathClst
GeoGebra
GeoGebra
New Resources
直線的斜率
比較五件物件的重量
百分數及其應用
垂直線的斜率
正方形雪花图案
Discover Resources
Newton
parallelgram with height 20120319
平行四邊形切割
sin(x) 的函數圖形的副本
Modular Surface：1 / (1 + z²)
Discover Topics
Mathematics
Logic
Ratios
Quadratic Equations
Secant Line or Secant