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alex kelly
作者：
Renert School
GeoGebra
最新資源
apec
Pendulum Snake
Comparing Two Quantities by Percentage
seo tool
Tube moving at distance of a curve.
探索資源
Secant to Tangent Line
Venn diagram with probabilities threeviews
construcción por pasos
Carroll Diagram
探索主題
三角學
Pythagoras or Pythagorean Theorem
算術
三角函數
算術運算