CBSE Class 12 Maths Important Chapters 2026 | High Weightage Topics for Board Exam
- Divya Shinde
- 4 hours ago
- 5 min read
CBSE Class 12 Maths is one of the most challenging subjects in the board exams. With the board examinations scheduled in March 2026, it becomes essential to focus on CBSE Class 12 Maths Imp Chapters 2026 that carry higher marks and are frequently asked in the question paper. Understanding which chapters are important helps you plan your revision, allocate time smartly, and target higher marks in the final exams. In this comprehensive guide, we break down those chapters, weightage, strategic preparation tips, and answer common student queries to help you achieve your board goals.
CBSE Class 12 Maths Syllabus Overview for 2026
The CBSE Class 12 Maths syllabus for 2026 consists of 6 major units and 13 chapters covering all crucial mathematical areas. Students must complete the NCERT textbook thoroughly, as most questions are pulled directly from it, and then practice additional sample papers and previous year questions to score well.
Unit Breakdown & Marks Distribution (Based on CBSE patterns & trends):
Unit | Major Topics | Marks |
1 | Relations & Functions (including Inverse Trig Functions) | ~8 |
2 | Algebra – Matrices & Determinants | ~10 |
3 | Calculus – Continuity, Differentiability, AOD, Integrals, DE | ~35 |
4 | Vectors & 3D Geometry | ~14 |
5 | Linear Programming | ~5 |
6 | Probability | ~8 |
Total Theory Paper: 80 marks (Plus 20 marks for internal assessment)
Section-Wise CBSE Class 12 Maths Imp Chapters 2026
1. Relations and Functions
Unit 1 forms the foundation of advanced mathematical topics in Class 12 maths.
Important Topics to Focus On:
Types of relations (reflexive, symmetric, transitive)
Inverse Functions
Domain and RangeWhy it’s important: Basic but frequently asked chapter; builds conceptual clarity for functions used later in calculus.
2. Inverse Trigonometric Functions
This chapter is often underestimated but extremely scoring if formulas and values are memorized correctly.
Key Areas:
Domain and range of inverse trig functions
Graphs of inverse trig functions
Principal valuesExam Insight: Suitable for both 1-mark and 2-mark questions.
3. Matrices
One of the highest scoring chapters in algebra due to direct formula-based questions.
Core Concepts:
Matrix operations (addition, multiplication, transpose)
Types of matrices (symmetric, skew-symmetric)
Inverse of matrices (using determinants)
Tip: Mastering matrices helps you solve systems of linear equations quickly.
4. Determinants
Determiners help solve systems and appear in both short and long questions.
Important Subtopics:
Properties of determinants
Minors and cofactors
Area of triangles using determinants
Cramer’s RuleExam Trend: Often used for 4-mark questions aimed at testing logical understanding.
5. Calculus – The Heart of the Syllabus
Calculus carries the maximum marks in CBSE Class 12 Maths, usually up to 35 marks. This makes it the most critical portion of CBSE Class 12 Maths Imp Chapters 2026.
Core Calculus Chapters & Concepts:
5.1 Continuity & Differentiability
Concept of limits and continuity
Differentiable functions
Rules of differentiation including chain rule
Exam Focus: Questions usually test limit applications and derivative basics.
5.2 Applications of Derivatives
Maxima and minima problems
Rates of change
Increasing and decreasing functionsTrend Insight: AOD is highly scoring and appears in both long and short answer types.
5.3 Integrals and Applications
Indefinite integrals
Definite integrals
Area under curve problemsPreparation Tip: Integration questions are usually standard and predictable.
5.4 Differential Equations
Formation and solutions of differential equations
Solution methods (separable variables approach)Exam Pattern: Questions are fairly direct; fundamentals can earn full marks.
6. Vector Algebra
Vectors are mostly formula-driven and scoring if the formulas are properly memorized.
Key Areas:
Dot and cross products
Direction cosines
Geometrical interpretation of vectorsExam Trend: Vectors questions often come from applied concepts and are scoring.
7. Three-Dimensional Geometry (3D)
3D geometry tests spatial understanding rather than formula memorization.
Important Topics:
Equations of a line in 3D
Equations of a plane
Distance of a point from a planeTip: Many questions connect 3D geometry with vector topics.
8. Linear Programming
This is a short but highly scoring chapter because it typically involves direct graph problems.
What to Focus On:
Formulation of LPP (Linear Programming Problem)
Graphical solution methods
Feasible regionsExam Insight: Often used for 5 marks, and scoring if graphs are neat.
9. Probability
Probability questions apply logical reasoning, and if you are confident with formulae and fundamentals, this chapter can be scoring.
Major Areas:
Conditional probability
Bayes’ theorem
Random variablesExam Tip: Solve many PYQs to become comfortable with probability applications.
How to Prepare CBSE Class 12 Maths Imp Chapters 2026
Preparation strategy plays a crucial role in converting effort into marks.
Strategic Revision Tips
Start with the high-weightage chapters: Calculus, Algebra, Vectors & 3D Geometry.
Daily practice: Solve questions from each chapter every day.
Revision with PYQs: Previous Year Questions help you identify patterns and frequently asked questions.
Formula sheets: Keep a separate formula sheet for matrices, calculus, and vectors.
Time-bound mock tests: Mimic exam conditions while solving sample papers.These strategies help ensure your preparation is systematic and goal-oriented.
CBSE Class 12 Maths Imp Chapters 2026 – FAQ Section
Here are the most frequently asked questions (FAQs) students have about CBSE Class 12 Maths Imp Chapters 2026.
Q1: What are the CBSE Class 12 Maths Imp Chapters 2026 that carry high weightage?
A: The chapters that consistently contribute the most marks in CBSE Class 12 maths are Calculus (Continuity, Differentiability, Integrals, Differential Equations), Algebra (Matrices & Determinants), Vectors & 3D Geometry, followed by Probability and Linear Programming.
Q2: Is NCERT enough for CBSE Class 12 Maths preparation?
A: Yes, NCERT textbooks are sufficient for preparing the board exam, but adding PYQs and sample papers will improve practice and confidence.
Q3: Which chapter should I start first to score 90+ in CBSE Class 12 Maths?
A: Begin with Calculus since it carries the highest marks, then focus on Algebra (Matrices, Determinants) and then on 3D Geometry and Vectors.
Q4: Is Linear Programming hard in CBSE Class 12 Maths?
A: No. Linear Programming is relatively simple and scoring, provided you practice graph plotting and feasible range models.
Q5: How much time should I allocate to each chapter before exam?
A: Allocate more time to Calculus (especially integrals & applications) and Algebra, and distribute the remaining time across the other units based on your comfort and difficulty levels.
Conclusion
Success in CBSE Class 12 Maths doesn’t come by chance—it comes through strategic preparation, consistent practice, and smart revision. Identifying CBSE Class 12 Maths Imp Chapters 2026 such as Calculus, Algebra, 3D Geometry, and Probability lets you focus your efforts on areas that carry the maximum marks and recurring questions. Combine this focus with solving PYQs, regular mock tests, and formula revision sheets for a winning board strategy.
With diligence and the right approach, scoring high in your maths board exam is absolutely achievable. Good luck with your preparation!
CBSE Class 12 Maths 2026 – Official Resources
Maximize your preparation with trusted official sources. Access NCERT textbooks, CBSE sample papers, and previous year questions to focus on CBSE Class 12 Maths Imp Chapters 2026 effectively.
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