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图中的三角形面积何时最小?(许兴华数学)
Author:
许兴华数学
Topic:
Quadratic Functions
GeoGebra
New Resources
球体的体积推导(优化版)
【案例】2013年安徽高考15题
球体的体积推导
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數(二)
Discover Resources
廣義角的代換(90度加減角度)
IMO2014C
封閉區域填色
test007
活工(一)Q2
Discover Topics
Frequency Distribution
Angles
Rectangle
Reflection
Quadratic Equations