Chapter 2 of 27
Revision Notes
Sets — Revision Notes
JCECE · Mathematics
Free Sets revision notes for JCECE Mathematics 2026 — key concepts, formulas, and definitions for quick revision.
Interactive on Super Tutor
Studying Sets? Get the full chapter — free.
Practice questions, revision notes, formula sheet and AI doubt-solver — built for JCECE Mathematics.
Super Tutor
This is just one of 16+ visuals inside Super Tutor's Sets chapter
Explore the full setRevision Notes — Sets
Key concepts, formulas, and definitions from Sets for JCECE Mathematics preparation.
Key Topics to Revise
1
Basic Concepts and Representations
- A set is a well-defined collection of distinct objects called elements
- Sets are denoted by capital letters (A, B, C) and elements by small letters (a, b, c)
- Two methods of representation: Roster method and Set-builder method
2
Subsets and Power Sets
- A ⊆ B means every element of A is also in B
- Proper subset: A ⊂ B when A ⊆ B and A ≠ B
- Empty set is subset of every set; every set is subset of itself
3
Set Operations - Union and Intersection
- Union (A ∪ B): elements in A or B or both
- Intersection (A ∩ B): elements common to both A and B
- Disjoint sets: A ∩ B = ∅
4
Complement and Difference Operations
- Complement A' = U - A (elements in U but not in A)
- A ∪ A' = U and A ∩ A' = ∅
- De Morgan's Laws: (A ∪ B)' = A' ∩ B' and (A ∩ B)' = A' ∪ B'
Get complete revision notes with diagrams and examples — continue in Super Tutor
Key Concepts
A set is a wellEmpty Set (∅)If every element of AUnion (A ∪ B)Complement A'
Frequently Asked Questions
What topics are covered in Sets for JCECE?
Sets is an important chapter in JCECE Mathematics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Basic Concepts and Representations, Subsets and Power Sets, Set Operations - Union and Intersection, Complement and Difference Operations.
How important is Sets for JCECE?
Sets is a frequently tested chapter in JCECE Mathematics. Questions from this chapter appear regularly in previous year papers. There are 172 practice questions available for this chapter.
How to prepare Sets for JCECE?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.
More resources for Sets
For JCECE aspirants
Get the full Sets chapter — for free.
Practice questions, revision notes, formula sheet and AI doubt-solver for JCECE Mathematics.