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拋物面的光學性質
Author:
宋政蒲
GeoGebra
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【案例】2013年安徽高考15题
兩位數除以一位數（二）
兩組對邊相等的四邊形
判斷球體
直角坐標平面上的旋轉變換
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Rectangle_05
與三個半圓相切之圓的填滿
半圓內切球內切圓
劉徽的「割圓術」的副本
線性估計(Linear Approximation)
Discover Topics
Line Segment
Random Variables
Definite Integral
Intersection
Difference and Slope