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選四塊來拼砌正方形
Author:
harryau
選四塊來拼砌正方形
GeoGebra
New Resources
撒针估算面积实验
斐波那契螺旋弧线(表格法-可动态调节)
椭圆内切圆链
球体的截面
第八周作业1
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[問題] a² + b² = 1, (c-4)² + (d-2)² = 5,求 ad - bc 最大值?
托勒密定理推廣到直線
SIN伸縮平移
seven-eighths sphere 八分之七球面
n 次方根 的複本
Discover Topics
Isosceles Triangles
Ratios
Natural Numbers
Surface
Statistics