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Introduce tangent ratio
Author:
VCChung
GeoGebra
New Resources
判斷球體
兩位數加法
球體建築師
三位數除以一位數（二）
異分母分數減法
Discover Resources
階梯問題
纏繞畫
Copy of cos(x) 的圖形
Copia de 分數除法5: x ÷ a/b (包含)
Twghmkc_運動與我
Discover Topics
Incircle or Inscribed Circle
Pie Chart or Circle Chart
Parallelogram
Mathematics
Functions