CBSE Class 11 Maths Deleted Syllabus 2025-26: Check Chapter-Wise Topics, And Exercises Removed

Chapter No.

Chapter Name

Deleted Topics

Unit I: Sets and Functions 

1

Sets

Power set

2

Relations & Functions

No Change

3

Trigonometric Functions 

General solution of trigonometric equations of the type sin y = sin a, cos y = cos a and tan y = tan a.  

Unit II: Algebra 

4

Principle of Mathematical Induction 

Complete Chapter

5

Complex Numbers and Quadratic Equations 

Polar representation of complex numbers. Statement of Fundamental Theorem of Algebra, solution of quadratic equations (with real coefficients) in the complex number system. Square root of a complex number. 

6

Linear Inequalities

Graphical solution of linear inequalities in two variables. Graphical method of finding a solution of system of linear inequalities in two variables. 

7

Permutations and Combinations 

No Change

8

Binomial Theorem

General and middle term in binomial expansion

9

Sequence and Series

Arithmetic Progression, Sum to n terms of Special Series

Unit-III: Coordinate Geometry

10

Straight Lines

Intercept normal form. General equation of a line. Equation of family of lines passing through the point of intersection of two lines.

11

Conic Sections

No Change

12

Introduction to Three-dimensional Geometry

Section Formula

Unit-IV: Calculus 

13

Limits and Derivatives 

No Change

Unit-V: Mathematical Reasoning

14

Mathematical Reasoning 

Complete Chapter

Unit-VI: Statistics and Probability 

15

Statistics 

Analysis of frequency distributions with equal means but different variances.  

16

Probability 

Random experiments; outcomes, sample spaces (set representation). 

Chapter

Deleted/Dropped Topics

Chapter 1: Sets

1.7 Power Set, Exercise 1.3 Ques. 5

1.12 Practical Problems on

Union and Intersection of Two Sets

Exercise 1.6

Examples 31–34 and Ques.

6–7 (Miscellaneous Exercise) Ques. 13–16 (Miscellaneous Exercise), Last Point in the

Summary on the Page Last Point in the Summary

Chapter 3: Trigonometric Functions

3.5 Trigonometric Equations (up to Exercise 3.4)

Last five points in the Summary

3.6 Proofs and Simple Applications of Sine and Cosine Formulae

Chapter 4: Principle of Mathematical Induction

Full Chapter

Chapter 5: Complex Number

5.5.1 Polar Representation of a Complex Number

5.6 Quadratic Equation Example 11 and Exercise

5.3 Examples 13, 15, 16 Ques. 5–8, 9 and 13

(Miscellaneous Exercise) Last three points in the Summary

5.7 Square-root of a Complex Number

Chapter 6: Linear Inequalities 

6.4 Graphical Solution of Linear Inequalities in Two Variables

6.5 Solution of System of Linear Inequalities in Two Variables 

Last three points in the Summary

Chapter 8: Binomial Theorem 

8.3 General Middle Terms Example 17 and Ques.

1–3, and 8 (Miscellaneous Exercise)

Last two points in the Summary

Chapter 9: Sequences and Series 

9.4 Arithmetic Progression (A.P.) (up to Exercise 9.2)

9.7 Sum to n terms of Special Series

Examples 21, 22 and 24

Ques. 1–6, 12, 15, 16, 20, 23–26 (Miscellaneous Exercise)

Point 3 and 4 in the Summary

Chapter 10: Straight Lines

10.2.4 Collinearity of Three Points (Examples 4–5 and Ques. 8, 13–14 in Exercise 10.1)

10.3.6 Normal Forms Ques. 8 in Exercise 10.2

10.4 General Equation of a Line

Ques. 3 in Exercise 10.3

Ques. 2 (Miscellaneous

Exercise) Fourth Last Point in the Summary

10.6 Equation of Family of Lines Passing Through the Points of Intersection of Two Lines

10.7 Shifting of Origin

Chapter 11: Conic Sections

11.5.2 Special Cases of an Ellipse 

Chapter 12: Introduction to Three Dimensional Geometry

12.5 Section Formula Exercise 12.3 

Ques. 4 and 5 (Miscellaneous Exercise), 

Last Three Points in the Summary

Chapter 14: Mathematical Reasoning 

Full Chapter

Chapter 15: Statistics 

15.6 Analysis of Frequency Distribution 

Ques. 6 (Miscellaneous Exercise) and last point in the Summary) 

Chapter 16: Probability

16.1 Introduction 

16.2 Random Experiment First Two Points in the Summary

Unit- 2: Relations

Topic 2.10 Types Of Relations

• 
  Define and illustrate different types of relations: Empty relation and universal relation  Examine whether the relation is equivalence or not  Define a function as a special type of relation  Categorize relations that are functions and nonfunctions

• Types of relations: Empty relation, universal relation, reflexive relation, symmetric relation, transitive relation, equivalence relation  Introducing a function as a special type of relation  Examples and non-examples of functions

Unit-3 Mathematical Reasoning

Topic 3.1 Mathematical Reasoning

Topic 3.2 Logical Reasoning

• 
  Identify mathematically acceptable statements 

• Express the implications of the compound statement 

• Validate mathematical statements 

• Meaning of mathematical statements Negation 

• Compound statements

• Quantifiers

• Converse and Contrapositive of the statement

• Implications 

• Validating statements

• Solve logical problems involving odd man out, syllogism, blood relation and coding-decoding

• Odd man out

• Syllogism

• Blood relations

• Coding Decoding

Unit-6 Descriptive Statistics

Topic 6.1: Types of data

Topic 6.2: Data on various scales

Topic 6.3: Data representation and data visualization

• 
  Organize raw data in discrete and continuous form. 

• Represent data on nominal and ordinal scales of measurement using pie charts and bar graphs. 

• Represent data on interval and ratio scales using histogram and frequency polygon. 

• Represent bivariate continuous data using a line graph 

• Choose an appropriate graph to represent data of various kinds

• Data organization in increasing/decreasing order, using frequency table and in-class intervals of various length 

• Graphical representation of data using pie-chart/bar graphs/histogram using class intervals of equal and unequal length 

• Visualization of data using Excel Spreadsheet or any other computer-assisted tool