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一元二次方程式-應用問題(兩圓相切)
Author:
均一
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
找出對稱軸
近似值：有效數字
sanjiaohanshu
Discover Resources
海市蜃樓現象
分段移動
sinα + sinβ > 0 ?
轨迹
Dodecahedron
Discover Topics
Similar Triangles
Tangent Function
Upper and Lower Sum or Riemann Sum
Isosceles Triangles
Tree Diagrams