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正弦定理验证
Author:
junfeilx
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
算柱 (兩位數)
拼砌四邊形
兩組對邊相等的四邊形
Discover Resources
testing
數值滑桿
軌跡為橢圓或雙曲線
我不知道我在幹嘛
正弦函数图象的形成
Discover Topics
Natural Numbers
Logarithm
Variance
Plane Figures or Shapes
Triangles