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1.3 集合的基本运算(P10 图1.3-1 并集)
Author:
张中强
P10 图1.3-1 并集动态展示
GeoGebra
P11 图1.3-3 集合交集动态展示
GeoGebra
集合A、B满足什么条件时,会有A交B=A?A并B=A?
GeoGebra
New Resources
Earth with coastline
Nested spiral octagon
直角坐標平面上的旋轉變換
四邊形的特性
近似值:有效數字
Discover Resources
正九邊形
證明三角形內角和180度
台球反射
量度身高
Linking dots (Function)
Discover Topics
Centroid or Barycenter
Set Theory
Mode
Conditional Probability
Expected Value