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三角函数
Author:
jason ni
Topic:
Trigonometric Functions
,
Trigonometry
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
拼砌四邊形
兩位數除以一位數（一）
四邊形的特性
Discover Resources
排列
Angle between Lateral Faces 3
area 面積2
內心
Binary Clock 二进制时钟
Discover Topics
Right Triangles
Incircle or Inscribed Circle
Symmetry
Straight Lines
Differential Equation