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拋物線1-焦點法
Author:
22吳心妤
GeoGebra
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近似值：有效數字
算柱 (兩位數)
判斷球體
畫出對稱圖形
直角坐標平面上的旋轉變換
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Area of trapezoid
perimeter
環環相扣
Solve ax + b = cx + d
二分法优化版（视频教程见https://www.bilibili.com/video/BV1ST4y1F78g）
Discover Topics
Geometric Distribution
Linear Functions
Scatter Plot
Variance
Congruence