CBSE Class 12 Maths Question Bank with Important Questions 2026: Relations & Functions, Matrices, and Determinants
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The CBSE Class 12 Maths Question Bank with Important Questions 2026 is your definitive guide to mastering the first two units of the senior secondary curriculum. As the board exam landscape evolves toward competency-based questions, simply solving the textbook is no longer enough. For the 2026 academic year, the Central Board of Secondary Education (CBSE) has emphasized analytical depth, making chapters like Relations & Functions, Matrices, and Determinants the bedrock of a high-scoring strategy.
Together, these units account for approximately 18 marks (8 for Relations & Functions and 10 for Algebra). While they are often considered "scoring," the margin for error in calculations—especially in Matrix Multiplication and Adjoint finders—is high. This guide provides a structured breakdown of the most repeated questions and official resources to ensure you remain at the top of your class.
Mastering the CBSE Class 12 Maths Question Bank with Important Questions 2026
To rank high in your board results, you must treat the CBSE Class 12 Maths Question Bank with Important Questions 2026 as your roadmap. Based on an analysis of the last five years of papers (2021–2025), certain patterns have emerged. For instance, questions on Equivalence Relations and Matrix Inversion are almost guaranteed to appear in Sections C or D.
Relations and Functions: Types and Logic
The weightage for this unit is steady at 8 marks. The core focus for 2026 remains on:
Types of Relations: Proving a relation is Reflexive, Symmetric, and Transitive to establish it as an Equivalence Relation.
Types of Functions: Identifying One-to-one (Injective) and Onto (Surjective) functions.
Inverse Trigonometric Functions: While a separate chapter, it relies heavily on the domain and range concepts learned here.
Algebra: The Power of Matrices and Determinants
This unit is the "low-hanging fruit" of the 12th-grade syllabus. With 10 marks at stake, your focus should be on:
Matrix Multiplication: Understanding the non-commutative nature (AB ≠ BA).
Inverse and Adjoint: Calculating the Adjoint of a 3x3 matrix accurately is a frequent 5-mark question.
Area of Triangle: A standard application of Determinants that often appears as a 2-mark or 3-mark problem.
Important Formula to Remember
In the CBSE Class 12 Maths Question Bank with Important Questions 2026, conceptual clarity is tested through the application of these specific methods. Ensure you have the following "Formula Names" memorized and practiced:
Relation Properties: Reflexive, Symmetric, and Transitive conditions.
Function Criteria: One-to-one (Injective) and Onto (Surjective) tests.
Matrix Operations: Addition, Subtraction, and Scalar Multiplication.
Multiplication Rule: Row-by-column multiplication method.
Transpose Properties: Symmetric and Skew-symmetric conditions.
Determinant Expansion: Laplace expansion (Sarrus Rule for 3x3).
Area of Triangle: Determinant-based coordinate geometry formula.
Adjoint of a Matrix: Transpose of the Cofactor matrix.
Inverse Matrix: Relationship between Determinant and Adjoint.
System of Equations: Matrix Method (AX = B) and Cramer’s Rule.
Official Links for CBSE Question Banks
The Central Board of Secondary Education (CBSE) provides official question banks, including competency-based questions and additional practice questions, on its academic website. For the 2026 session, refer only to the following verified portals:
CBSE Academic Website (Question Bank Section): cbseacademic.nic.in
Alternative Official Link (Direct Access): www.cbse.gov.in Question Bank
Pro Tip: Navigate to the "Question Bank" tab, select "Class 12," and download the Mathematics PDF. These documents contain the exact "Case Study" questions that toppers use to practice.
Preparation Strategy for 2026 Board Exams
Success in Mathematics is less about the number of hours and more about the quality of the CBSE Class 12 Maths Question Bank with Important Questions 2026 you utilize.
Solve NCERT Examples First: 70% of board questions are either direct or modified versions of NCERT examples.
Analyze Previous Year Papers: Specifically, look for the 2024 and 2025 papers to understand the latest shift toward "Assertion-Reasoning" questions.
Time-Bound Practice: When solving matrices, time yourself. Calculation errors in finding the inverse are the number one reason students lose marks.
Visual Aids: For Relations and Functions, use arrow diagrams (Mapping) to verify if a function is Onto or One-to-one.
Conclusion
The path to scoring a 95+ in Mathematics starts with a dedicated focus on the CBSE Class 12 Maths Question Bank with Important Questions 2026. By mastering the nuances of Relations, the mechanical accuracy of Matrices, and the logical application of Determinants, you set a strong foundation for the rest of the syllabus. Keep practicing, stick to official resources, and ensure your step-by-step presentation is neat.
Frequently Asked Questions (FAQs)
Q1: Where can I find the best CBSE Class 12 Maths Question Bank with Important Questions 2026?
Ans: The most reliable CBSE Class 12 Maths Question Bank with Important Questions 2026 is available on the official CBSE Academic website (cbseacademic.nic.in). Additionally, solving NCERT Exemplar problems provides a high-level practice needed for the 2026 exams.
Q2: What are the most repeated questions in Matrices and Determinants?
Ans: Historically, solving a system of linear equations using the Matrix Method (A^-1) and proving properties of Determinants (like finding the Area of a Triangle) are the most repeated topics.
Q3: Is the 2026 syllabus different from previous years?
Ans: While the core topics like Relations, Functions, and Algebra remain, the 2026 exams will feature a higher percentage of competency-based and case-study questions designed to test real-world application.
Q4: How many marks are allotted to Relations and Functions in 2026?
Ans: Per the latest official weightage, the unit "Relations and Functions" (including Inverse Trigonometric Functions) carries 8 marks in the 80-mark theory paper.
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