Edexcel IGCSE Maths复习笔记 1.6.1 Set Notation & Venn Diagrams
Edexcel IGCSE Maths复习笔记 1.6.1 Set Notation & Venn Diagrams What do I need to know? You’ll be drawing Venn diagrams so make sure you are familiar with those first Notation ξ is the universal...