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正弦函数图像
Author:
李红
GeoGebra
New Resources
兩位數除以一位數（二）
三位數除以一位數（二）
兩組對邊相等的四邊形
【案例】圆柱体内放置一个大球六个小球
兩位數加法
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Boxes
Quiz on Simplifying Ratios 比的化簡：測驗
GeoGebra圖檔上傳
三角
-3/2 ≤ cosα + cosβ + cosγ ≤ 3
Discover Topics
Circle
Step Functions
Surface
Calculus
Functions