# Sets class 11 Notes Mathematics

CBSE Mathematics Chapter 1 Sets class 11 Notes Mathematics in PDF are available for free download in myCBSEguide mobile app. The best app for CBSE students now provides Sets class 11 Notes Mathematics latest chapter wise notes for quick preparation of CBSE exams and school based annual examinations. Class 11 Mathematics notes on Chapter 1 Sets class 11 Notes Mathematics are also available for download in CBSE Guide website.

## CBSE Guide Sets class 11 Notes

CBSE guide notes are the comprehensive notes which covers the latest syllabus of CBSE and NCERT. It includes all the topics given in NCERT class 11 Mathematics text book. Users can download CBSE guide quick revision notes from myCBSEguide mobile app and my CBSE guide website.

## Sets class 11 Notes Mathematics

Download CBSE class 11th revision notes for Chapter 1 Sets class 11 Notes Mathematics in PDF format for free. Download revision notes for Sets class 11 Notes Mathematics and score high in exams. These are the Sets class 11 Notes Mathematics prepared by team of expert teachers. The revision notes help you revise the whole chapter in minutes. Revising notes in exam days is on of the best tips recommended by teachers during exam days.

CBSE Class 11 Mathematics
Revision Notes
Chapter – 1
Sets class 11 Notes Mathematics

1. Sets and their Representations
2. The Empty Set, Finite and Infinite Sets, Equal Sets
3. Subsets, Power Set, Universal Set
4. Venn Diagrams, Operations on Sets
5. Complement of a Set
6. Union and Intersection of Two Sets
• Set: A set is a well-defined collection of objects.
• Representaiton of sets: (i) Roster or Tabular form, (ii) Rule method or set builder form.

Types of sets:

• Empty set: A set which does not contain any element is called empty set or null set or void set. It is denoted by $\phi$ or {  }.
• Singleton set: A set, consisting of a single element, is called a singleton set.
• Finite set: A set which consists of a definite number of elements is called  finite set.
• Infinite set: A set, which is not finite, is called infinite set.
• Equivalent sets: Two finite sets A and B are equivalent, if their cardinal numbers are same, .i.e, $n\left( {\rm{A}} \right) = n\left( {\rm{B}} \right)$.
• Equal sets: Two sets A and B are said to be equal if they have exactly the same elements.
• Subset: A set A is said to be subset of a set B, if every element of A is also an element of B. Intervals are subsets of R.
• Proper set: If A $\subseteq$ B and A $\ne$ B, then A is called a proper set of B, written as A $\subset$ B.
• Universal set: If all the sets under consideration are subsets of a large set U, then U is known as a universal set. And it is denoted by rectangle in Venn-Diagram.
• Power set: A power set of a set A is collection of all subsets of A. It is denoted by P(A).
• Venn-Diagram: A gepmetrical figure illustrating universal set, subsets and their operations is known as Venn-Diagram.
• Union of sets: The union of two sets A and B is the set of all those elements which are either in A or in B.
• Intersection of sets: The intersection of two sets A and B is the set of all elements which are common. The difference of two sets A and B in this order is the set of elements which belong to A but not to B.
• Disjoint sets: Two sets A and B are said to be disjoint, if ${\rm{A}} \cap {\rm{B = }}\phi$.
• Difference of sets: Difference of two sets i.e., set (A – B) is the set of those elements of A which do not belong to B.
• Compliment of a set: The complement of a subset A of universal set U is the set of all elements of U which are not the elements of A. A’ = U – A.
• For any two sets A and B, (A ∪ B)′ = A′ ∩ B′ and ( A ∩ B )′ = A′ ∪ B′
• If A and B are finite sets such that A ∩ B = φ, then
n (A ∪ B) = n (A) + n (B).
• If A  ∩ B ≠ φ, then
n (A ∪ B) = n (A) + n (B) – n (A ∩ B)

## Sets class 11 Notes

• CBSE Revision notes for Class 11 Mathematics PDF
• CBSE Revision notes Class 11 Mathematics – CBSE
• CBSE Revisions notes and Key Points Class 11 Mathematics
• Summary of the NCERT books all chapters in Mathematics class 11
• Short notes for CBSE class 11th Mathematics
• Key notes and chapter summary of Mathematics class 11
• Quick revision notes for CBSE exams

## CBSE Class-11 Revision Notes and Key Points

The Sets class 11 Notes Mathematics. CBSE quick revision note for class-11 Mathematics, Physics, Chemistry, Biology and other subject are very helpful to revise the whole syllabus during exam days. The revision notes covers all important formulas and concepts given in the chapter. Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you. These notes will certainly save your time during stressful exam days.

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