CBSE Class 11 Maths Revision Notes

Introduction to CBSE Exam

The Central Board of Secondary Education is one of the most preferred boards across India. Most students choose CBSE in classes 11 and 12 owing to its similarity in the syllabus with the competitive exams of JEE and NEET. CBSE aims to provide all-inclusive and all-around education to its students, thereby nurturing their development both mentally and physically. The CBSE syllabus is famous for its detailed and comprehensive nature, which students can easily understand by reading the NCERT books. There are more than 24,000 schools affiliated with CBSE throughout India. 

CBSE Class 11 Mathematics Notes

Class 11 Mathematics is considered the most important and somewhat difficult subject in the Higher Secondary syllabus. Maintaining a good score in Mathematics is very important and can be achieved by solving our CBSE sample papers and important questions, which also add consistency to the revision process. This will help them remain in touch with different topics and plan for the examination. The experts at Extramarks have designed CBSE class 11 Mathematics notes having important concepts, formulae, selective examples, and tips and tricks for students to help them learn complex concepts with ease and score well in exams. 

The notes have been designed in such a way that candidates will find it easy to read and at the same time don’t miss out on a single topic. The notes are concise for every topic, such as Algebra, Trigonometry and Coordinate geometry, etc. The CBSE revision notes prepared by our experts will help students clarify their concepts and provide them with a boost to solve difficult concept-based questions. 

Chapter-Wise CBSE Class 11 Mathematics Notes

Class 11 is vital and creates a foundation for class 12 and multiple competitive exams, requiring special attention. Most students often consider Mathematics in class 11 difficult due to its concept-dependent nature. Our CBSE Class 11 Mathematics notes help students understand the core concepts easily, making every chapter easy to comprehend. The CBSE class 11 Mathematics notes contain questions from topics of high weightage from CBSE previous year question papers, NCERT books, and questions prepared by experienced teachers. The free access to our  CBSE Class 11 Mathematics notes can be availed from the Extramarks website.

Below are the chapter-wise Mathematics notes for different chapters of class 11 CBSE. Students can take a look at the notes and enhance their preparation. 

Chapter 1 – Sets

Sets deals with sets and their types- Empty sets, Equal sets, subsets, universal sets, finite and infinite sets. It also includes a graphical representation of sets in the form of Venn diagrams. The other important topics in the chapter include operations performed on sets like union, intersection, the difference of sets and de Morgan’s theorem.

Chapter 2 – Relations and Functions

Relations and Functions include Venn diagrams, the definition of relation and function, domain, range, and codomain of both functions and relation. It also provides insight into different types of standard functions like the modulus, greatest integer function, etc. 

The CBSE class 11 Mathematics notes for relations and functions can be viewed by students for free from the link given above. 

Chapter 3 – Trigonometric Functions

Trigonometric functions introduce students to different trigonometric identities and functions. It helps in establishing the relationship between degrees and radians. Students are also introduced to trigonometric functions, their inverse, and the domain and range. 

The CBSE class 11 Mathematics notes for trigonometric functions can be very helpful for the students in the long run as it consists of different identities and shortcuts.

Chapter 4- Principles of Mathematical Induction

The Principle of Mathematical induction primarily involves proving different statements through the use of Mathematical induction.

Our CBSE Class 11 Mathematics notes for this chapter contain different questions of varying difficulty curated by our experts. 

Chapter 5 – Complex Numbers and Quadratic Equations

Quadratic Equations and Complex Numbers is a concept-based chapter that needs constant revision to obtain clarity. It includes topics like complex numbers on the Argand plane, solutions of quadratic equations, square root of negative numbers, fundamental theorem of algebra, to name a few. 

Students are advised to check the CBSE class 11 Mathematics notes for the chapter and practice the CBSE extra questions to enhance their preparation. 

Chapter 6 – Linear Inequalities

Linear Inequalities includes solving different algebraic inequalities and plotting the solutions on a number line. The scope of this chapter extends up to two variables. Students are also taught the graphical method to plot inequalities and find their solutions. 

CBSE class 11 Mathematics notes for this chapter will prove to be beneficial as students can score well in the questions asked from this chapter. Our experts have carefully curated questions for students to solve. 

Chapter 7 – Permutations and Combinations

Permutations and combinations include a wide variety of topics ranging from the Fundamental principle of counting to the formula of permutation and combination for n objects. The chapter also touches on factorials and applications of arrangement. The CBSE class 11 Mathematics notes for PnC contain the topics explained in an easy-to-understand manner. 

Chapter 8 – Binomial Theorem

Binomial Theorem is a chapter based on Permutations and Combinations. It helps simplify complex calculations and reduces the work done in expanding a polynomial. The chapter included essential binomial expansion, middle-term, and so on.

Students can check out the CBSE class 11 Mathematics notes for binomial to revise the important formula.

Chapter 9 – Sequence and Series

Sequence and Series include topics like Arithmetic Progression, Geometric Progression, and Harmonic progression. It explains the basic difference between a sequence and a series. 

The CBSE class 11 Mathematics notes for the series contain all the important formulae compiled for the chapter that candidates can refer to help them prepare. 

Chapter 10- Straight Lines 

Straight lines include concepts of distance formula and different forms of equations of the line. The other concepts include the distance of a point from a line, the general equation of a straight line, etc.

A straight line is a chapter where formula plays a pivotal role in solving questions. The CBSE class 11 Mathematics notes for straight lines compile all the important formulae for straight lines.

Chapter 11 – Conic Sections

Conic sections include the study of different conics like circle, ellipse, parabola, and hyperbola. It is one of the most important chapters of class 11. Like straight lines, the formulae are vital to understanding the chapter. It includes topics such as finding the equation of tangents from a point, finding normal, etc. 

The CBSE class 11 notes for conics can be very helpful for conic sections from both boards and competitive points of view. 

Chapter 12 – Introduction to Three Dimensional Geometry

Three Dimensional Geometry gives candidates an insight into how to work with three coordinates in space. It includes topics like section formula, distance formula, and 3-D equations of planes. 

The CBSE class 11 Mathematics notes for 3-D provided by Extramarks give students a deeper insight into 3-D geometry with specially curated questions to solve.

Chapter 13 – Limits and Derivatives

Limits and Derivatives introduce candidates to the basics of calculus. It includes topics like the basics of limits and the definition of a derivative. It includes basic questions on the algebra of limits and derivatives.

The CBSE class 11 Mathematics notes for limits has tips to solve the questions in the exam faster. 

Chapter 14 – Mathematical Reasoning

Mathematical reasoning primarily includes deductive reasoning. It involves validation of different statements and understanding of conditions. 

Chapter 15 – Statistics

Statistics is a chapter that requires constant practice and time management. Most of the questions asked in the exam are formula based. The CBSE class 11 Mathematics notes contain handpicked questions for statistics, by our experts. These questions will clear the concept as well as increase the proficiency of the students.

Chapter 16 – Probability

Probability is explained in a crude form in class 11 and sets the base for probability in class 12. Students learn outcomes, sample space, and different types of events in the chapter. 

CBSE class 11 Mathematics marks distribution

1. 80 marks- Theory paper conducted by the school
2. 20 marks- Internal examination