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sin(x) 的函數圖形的副本
Author:
优选
,
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
四邊形的特性
兩位數加法
柱體建築師
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
Discover Resources
費氏螺旋 (基本作圖)
测试网页
圓與三角形中點的軌跡
三角函數的繪圖2-1
錯角---垂直平行綫
Discover Topics
Ellipse
Statistics
Similar Triangles
Trigonometric Functions
Trapezoid