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LECTURES ON IIT JEE MATHEMATICS
Class XII Mathematics
Relations and functions, inverse trigonometry, matrices, determinants, differential and integral calculus, differential equations, vectors, three-dimensional geometry, probability and linear programming.
22 Chapters237 Planned Lectures
Table of Contents
Select a chapter to view its lectures. Lecture text, videos, practice problems and solutions will be published progressively.
01 Relations, Mappings and Invertibility7 Lectures
- Types of Relations
- Equivalence Relations and Equivalence Classes
- Types of Functions and Mapping Structure
- Composition and Inverse Functions — Introduction and Foundations
- Composition of Functions — Structural Results and Advanced Problems
- Invertibility, Inverse Functions and Involutions
- Counting Functions and Finite Mappings
02 Advanced Functions and Functional Equations7 Lectures
- Advanced Domains and Nested Functions
- Range of Functions — Algebraic Methods
- Range of Composite, Restricted and Piecewise Functions
- Graphs, Function Equations and Inequalities
- Iterated Functions, Fixed Points and Functional Structure
- Functional Equations I — Substitution, Symmetry and Mapping Methods
- Functional Equations II — Domain-Specific and Advanced Structures
03 Inverse Trigonometric Functions11 Lectures
- Principal Branches, Domains, Ranges and Graphs
- Principal Values, Allied-Angle Reduction and Composition with Trigonometric Functions
- Fundamental Identities and Conversion of Inverse Trigonometric Functions
- Trigonometric Functions of Inverse Trigonometric Arguments
- Sums and Differences of Inverse Trigonometric Functions
- Double-, Triple- and Multiple-Angle Inverse Trigonometric Formulae
- Equations Involving Inverse Trigonometric Functions
- Domains of Inverse Trigonometric and Composite Functions
- Ranges and Extremal Values of Inverse Trigonometric Expressions
- Inequalities Involving Inverse Trigonometric and Mixed Functions
- Limits of Inverse Trigonometric Functions — Left-Hand Limits, Right-Hand Limits, Continuity, Endpoint Behaviour and Advanced Applications
04 Matrices11 Lectures
- Matrices, Entries, Order and Equality
- Types and Special Forms of Matrices
- Algebra of Matrices
- Matrices as Transformations
- Transpose, Symmetric and Skew-Symmetric Matrices
- Powers and Special Algebraic Matrices
- Trace, Orthogonal Matrices and Related Structure
- Rank of a Matrix
- Adjoint, Inverse and Elementary Transformations
- Matrix Polynomials and the Cayley–Hamilton Idea
- Eigenvalues, Quadratic Forms and Classification
05 Determinants10 Lectures
- Determinants: Definition, Orders and Expansion
- Minors, Cofactors and General Expansion
- Properties and Elementary Transformations of Determinants
- Determinant Evaluation Strategies
- Special Determinants
- Factorisation and Parameter-Dependent Determinants
- Multiplication, Adjoint and Determinant Formulae
- Determinants and Geometry
- Differentiation, Integration and Summation of Determinants
- Determinants, Characteristic Polynomial and Bridge to Matrices
06 Systems of Linear Equations8 Lectures
- Linear Equations, Systems and Dependence
- Matrix Form and Inverse Method
- Cramer’s Rule
- Gaussian Elimination
- Rank and the Nature of Solutions
- Adjoint Criterion for Existence and Nature of Solutions
- Homogeneous Systems and Linear Dependence
- Parameter-Dependent Systems and Synthesis
07 Continuity and Differentiability9 Lectures
- Continuity at a Point: Limits, Function Values, and One-Sided Continuity
- Discontinuity: Removable, Jump, Infinite, and Oscillatory Behaviour
- Continuity on Intervals, Endpoints, and Domains
- Algebra and Composition of Continuous Functions; Special Functions
- Intermediate Value Theorem and Existence of Roots
- Derivative as a Limit and Limits Recognised as Derivatives
- Left and Right Derivatives; Differentiability at a Point
- Differentiability versus Continuity and Modes of Non-Differentiability
- Differentiability on Intervals and Advanced JEE Structures
08 Methods of Differentiation14 Lectures
- Standard Derivatives and Algebra of Differentiation
- Chain Rule and Differentiation of Composite Functions
- Exponential and Logarithmic Differentiation
- Logarithmic Differentiation and Variable Powers
- Inverse Trigonometric Functions and Principal-Value Structure
- Implicit Differentiation
- Parametric Differentiation
- Differentiation with Respect to Another Function and Inverse Functions
- Piecewise, Modulus and Special Real Functions
- Oscillatory and Highly Composite Functions
- Higher-Order and Successive Derivatives
- The nth Derivative and Periodic Derivative Patterns
- Leibniz Theorem and Structured Higher Derivatives
- Infinite Forms, Determinants and Introductory Partial Derivatives
09 Mean Value Theorems and Polynomial Roots9 Lectures
- Rolle’s Theorem: Hypotheses, Geometry, and Applicability
- Lagrange’s Mean Value Theorem and the Secant–Tangent Principle
- Consequences of the Mean Value Theorem: Constancy, Monotonicity, and Bounds
- Cauchy’s and Generalized Mean Value Theorems
- Mean Value Theorems in Inequalities and Comparison of Functions
- Polynomial Roots, Rolle Chains, and Interlacing of Zeros
- Repeated Roots, Multiplicity, and Derivative Structure of Polynomials
- Nature, Number, and Location of Real Roots; Cubics and Parameter Problems
- Fixed Points, Successive Approximation, and the Newton–Raphson Idea
10 Applications of Derivatives15 Lectures
- Derivative as a Rate of Change; Motion and Related Rates
- Differentials, Linear Approximation, and Errors
- Increasing and Decreasing Functions; Monotonicity
- Comparison of Functions and Inequalities Using Derivatives
- Critical Points, Stationary Points, and Local Extrema
- First-Derivative Test and Sign Analysis
- Second and Higher Derivative Tests; Concavity and Points of Inflection
- Absolute Extrema on Restricted, Piecewise, and Discontinuous Domains
- Optimization of Algebraic, Trigonometric, Exponential, and Logarithmic Expressions
- Geometric Optimization and Applications to Coordinate Geometry and Conics
- Tangents and Normals: General Theory and Geometric Conditions
- Tangents and Normals to Implicit and Parametric Curves
- Angle Between Curves, Orthogonal Intersection, Common Tangents and Common Normals
- Differential Applications to Circle, Parabola, Ellipse, and Hyperbola
- Subtangent, Subnormal, Tangent and Normal Lengths, and Related Geometric Properties
11 Curve Tracing and Geometry of Curves13 Lectures
- Transformations of Graphs and Structural Reading of a Curve
- Framework for Cartesian Curve Tracing: Domain, Symmetry, Intercepts, Branches, and Derivatives
- Vertical and Horizontal Asymptotes
- Oblique and Polynomial Asymptotes; Position Relative to an Asymptote
- Singular and Multiple Points; Tangents at Exceptional Points
- Nodes, Cusps, Isolated Points, and Local Branch Structure
- Complete Tracing of Explicit Cartesian Curves
- Complete Tracing of Implicit Algebraic Curves
- Parametric Curves: Orientation, Loops, Tangents, and Complete Tracing
- Polar Coordinates, Polar Derivatives, Symmetry, and Tangents
- Complete Tracing of Polar Curves
- Curvature and Radius of Curvature of Cartesian Curves
- Curvature of Parametric and Polar Curves; Centre of Curvature, Osculating Circle, and Evolute Ideas
12 Indefinite Integrals18 Lectures
- Antiderivatives and the Structure of the Indefinite Integral
- Standard Integrals and Recognition of Derivative Patterns
- Substitution: The Fundamental Change-of-Variable Method
- Algebraic Manipulation Before Integration
- Quadratic Denominators and Standard Rational Forms
- Radical Quadratics and Classical Trigonometric Substitutions
- Rational Functions and Partial Fractions — I
- Partial Fractions — II: Quadratic Factors and Advanced Decompositions
- Trigonometric Integrals — I: Powers and Products of Sine and Cosine
- Trigonometric Integrals — II: Powers of tan, sec, cot, and cosec
- Rational Trigonometric Integrals and the t = tan(x/2) Substitution
- Special Trigonometric Transformations and Derived Substitutions
- Integration by Parts: Principle, Choice, and Repeated Application
- Cyclic Integrals and Exponential–Trigonometric Products
- Algebraic Radical Integrals and Rationalising Substitutions
- Reciprocal, Symmetric, and Quartic Integrals
- Euler Substitutions and General Quadratic Radicals
- Reduction Formulae, Parameter Methods, and the Integration Strategy
13 Definite Integrals15 Lectures
- The Definite Integral: Meaning, Signed Area, and the Fundamental Theorem of Calculus
- Evaluation of Definite Integrals and Change of Variable
- Fundamental Algebraic Properties, Additivity, and Piecewise Integration
- Reflection and King’s Properties: Pairing an Integrand with Its Mirror Image
- Symmetric Limits, Even–Odd Functions, and Half-Interval Properties
- Special Symmetry Substitutions and Self-Reciprocal Integrals
- Periodic Functions and Integration over Complete and Partial Periods
- Modulus, Greatest Integer, Fractional Part, Signum, and Other Piecewise Integrands
- Ordering, Integral Inequalities, Bounds, and Mean Value Theorems
- Definite Integral as a Limit of a Sum: Riemann Sums and Recognition Techniques
- Integral Functions and Limits Involving Definite Integrals
- Differentiation Under the Integral Sign and the Leibniz Rule
- Improper Integrals: Infinite Limits and Unbounded Integrands
- Wallis Integrals and Definite Trigonometric Reduction Formulae
- Gamma and Beta Functions and Related Special Definite Integrals
14 Applications of Integrals14 Lectures
- Geometric Measure and the Construction of Area Integrals
- Vertical and Horizontal Strips: Integration with Respect to x and y
- Area Between Curves and Changing Boundaries
- Symmetry, Periodicity, and Area Reduction
- Regions Defined by Modulus, Piecewise Functions, and Inequalities
- Area Associated with Inverse Functions
- Parametric Curves and Area
- Polar Area: Sector Element and Regions Bounded by Polar Curves
- Areas of Standard Polar Curves and Area Between Polar Curves
- Area Functions, Moving Boundaries, and Inverse Area Problems
- Volumes from Known Cross-Sections
- Solids of Revolution: Discs, Washers, and Cylindrical Shells
- Arc Length of Cartesian, Parametric, and Polar Curves
- Surface Area of Revolution, Centroids, and the Unified Single-Integral Method
15 Differential Equations17 Lectures
- Differential Equations: Language, Order, Degree, Linearity, and Solutions
- Formation of Differential Equations by Elimination of Arbitrary Constants
- Variables Separable: Fundamental Method and Initial-Value Problems
- Equations Reducible to Variables Separable
- Homogeneous Functions and Homogeneous Differential Equations
- Reducible-to-Homogeneous Equations and Translation of Axes
- First-Order Linear Differential Equations and the Integrating Factor
- Bernoulli Differential Equations and Reduction to Linear Form
- Exact Differential Equations
- Integrating Factors and Equations Reducible to Exact Form
- Orthogonal and Constant-Angle Trajectories
- First-Order Higher-Degree Equations: Solvable for p
- First-Order Higher-Degree Equations: Solvable for x or y
- Clairaut’s Equation, General Solution, and Singular Solution
- Simple Higher-Order Differential Equations and Reduction of Order
- Geometrical Differential Equations and Tangent–Normal Conditions
- Mathematical Modelling with First-Order Differential Equations and Grand Mixed Drill
16 Vector Algebra and Geometric Representation8 Lectures
- Scalars, Vectors, and the Geometry of Directed Quantities
- Addition and Subtraction of Vectors: Geometric and Algebraic Structure
- Cartesian Components and Resolution of Vectors
- Position Vectors, Points, and Division of a Line Segment
- Direction Ratios, Direction Cosines, and Orientation in Space
- Linear Combinations and Geometric Span
- Linear Dependence, Independence, Collinearity, and Coplanarity
- Vector Methods in Plane Geometry
17 Products of Vectors and Projection Geometry10 Lectures
- Scalar Product: Definition, Algebra, and Angle Between Vectors
- Scalar Projection, Vector Projection, and Orthogonal Decomposition
- Dot Product Identities and Metric Geometry
- Vector Product: Orientation, Magnitude, and Algebra
- Area, Normal Vectors, and Perpendicular Distance Through Cross Products
- Lagrange’s Identity and Combined Dot–Cross Methods
- Scalar Triple Product and Oriented Volume
- Vector Triple Product and BAC–CAB Identity
- Identities Involving Products of Four Vectors
- Vector Equations and Geometric Synthesis
18 Three-Dimensional Geometry: Points, Lines, and Planes13 Lectures
- Cartesian Space, Coordinate Planes, Octants, and Position Vectors
- Direction Ratios, Direction Cosines, and Directions in Space
- Straight Line in Space: Vector and Parametric Equations
- Relative Position of Two Lines in Space
- Distance of a Point from a Line and Orthogonal Projection on a Line
- Shortest Distance Between Two Lines
- Plane: Normal Vector and Fundamental Equations
- Equations of a Plane from Geometric Data
- Angle Between Planes and Angle Between a Line and a Plane
- Distance from a Point to a Plane and Projection on a Plane
- Line–Plane Intersection and Relative Position
- Families of Planes and Angle-Bisector Planes
- Spatial Configurations of Lines and Planes
19 Sphere and Elementary Geometry of Surfaces in Space7 Lectures
- Sphere: Definition, Standard Equation, and General Equation
- Equations of Spheres from Geometric Data
- Plane Sections of a Sphere and Great Circles
- Tangency to a Sphere and Tangent Plane
- Two Spheres, Radical Plane, and Common Circle
- Cylinders as Loci Generated by Parallel Lines
- Sphere, Cylinder, and Spatial Loci
20 Conditional Probability and Independence6 Lectures
- Conditional Probability
- Multiplication Theorem of Probability
- Independent Events
- Independence of Three or More Events
- Law of Total Probability
- Bayes’ Theorem
21 Random Variables and Probability Distributions9 Lectures
- Random Variables
- Probability Distribution of a Discrete Random Variable
- Mathematical Expectation
- Variance and Standard Deviation
- Expectation of Sums and Indicator Variables
- Bernoulli Trials and the Binomial Distribution
- Binomial Probabilities
- Mean, Variance and Standard Deviation of a Binomial Distribution
- Properties and Mode of the Binomial Distribution
22 Linear Programming6 Lectures
- Linear Inequations in Two Variables and Half-Planes
- Systems of Linear Inequations and Feasible Regions
- Formulation of a Linear Programming Problem
- Graphical Solution — Corner Point Method
- Special Cases and Multiple Optimal Solutions
- Applications and Mathematical Modelling
About the lectures. Each lecture retains its theory, explanations, proofs and worked examples in the original sequence. End-of-lecture practice problems and their solutions will be presented separately when the lecture is published.
