Maths Free Live Class CUET 2026 | Relations Functions Matrices Determinants | Deepak Bhatt Sir

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Course Strategy & Weightage
[01:08] - 1-Month Countdown: Discusses the importance of targeted study rather than just staying busy as the exam is only one month away.
[04:33] - Exam Pattern & Weightage: Brief overview of how many questions typically appear from these four chapters based on previous years (e.g., 2025 analysis).
[09:20] - Mindset for 50 Questions/Hour: Emphasizes that because students must solve 50 questions in 60 minutes, the difficulty level is generally moderate, making speed and concept clarity crucial.
Relations and Functions
[11:33] - Total Number of Relations: Explains the formula for calculating total relations on a set A: 2^{n^2}, where n is the number of elements in the set.
[17:45] - Empty/Void Relation: Defines a relation where no element of set A is related to any other element.
[22:23] - Identity Relation: Describes a relation where every element is related to itself and only itself (e.g., (1,1), (2,2)). It is noted as the smallest equivalence relation.
[00:28:15] - Symmetric & Transitive Relations: Understanding the conditional logic (If aRb, then bRa).
[00:45:10] - Equivalence Relations: How to prove a relation is all three (Reflexive, Symmetric, Transitive).
[01:10:20] - Function Types (One-to-One & Onto): Horizontal line test and range-matching for Injective and Surjective functions.
II. Inverse Trigonometric Functions (ITF)
[01:45:30] - Domain and Range Table: The essential "must-memorize" table for Principal Value Branches (e.g., \sin^{-1}x vs. \cos^{-1}x).
[02:05:15] - Property Simplification: Solving expressions using properties like \sin^{-1}(1/x) = \csc^{-1}x.
[02:30:45] - Substitution Methods: When to use \tan\theta or \sin\theta to simplify complex inverse expressions.
III. Matrices
[03:15:20] - Types of Matrices: Detailed look at Scalar, Identity, and Diagonal matrices.
[03:40:40] - Matrix Multiplication: The row-by-column rule and why AB is not always equal to BA.
[04:05:10] - Symmetric and Skew-Symmetric: Properties where A^T = A and A^T = -A.
IV. Determinants
[04:35:50] - Expansion of Determinants: Shortcut methods for 3x3 matrices.
[04:55:15] - Area of Triangle: Using determinants to find area and checking for collinearity.
[05:10:30] - Adjoint and Inverse: The formula A^{-1} = \frac{1}{|A|} \text{adj}(A) and its existence conditions (|A| \neq 0).
V. Exam Strategy & Wrap-up
[00:04:33] - Weightage Analysis: Breakdown of how many marks these four chapters usually carry in CUET.
[05:34:47] - Leaderboard & Motivational Closing: Final results from the live polls and advice on the one-month preparation strategy.

CUET 2026 Maths Free Live Class | SAFAL 4.0 Free YouTube Series

In this free live class for CUET 2026 Maths, we will cover the most important chapters including Relations and Functions, Matrices, Determinants, and Inverse Trigonometric Functions.
This session is part of the SAFAL 4.0 Free YouTube Series designed to help CUET aspirants score high in Maths.

📚 Topics Covered:
👉 Relations and Functions CUET 2026
👉 Matrices CUET 2026
👉 Determinants CUET 2026
👉 Inverse Trigonometric Functions CUET 2026
👉 CUET Maths Strategy
👉 Important Questions & PYQs
👉 CUET 2026 Preparation Strategy

This free CUET Maths live class is useful for all CUET aspirants preparing for CUET UG 2026 Maths domain.

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