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Formula Sheet

Matrices — Formula Sheet

J&K CET · Mathematics

Free Matrices formula sheet for J&K CET Mathematics 2026 — all important formulas, equations, and constants for quick reference.

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A visual representation of a matrix, clearly showing its elements, rows, columns, and how its order (m x n) is defined. Highlight the 'a_ij' notation for elements.
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Formula Sheet — Matrices

Important formulas and equations from Matrices for J&K CET Mathematics.

Formulas — Matrices

Matrix Fundamentals

A = [aᵢⱼ]ₘₓₙ
Order of matrix = m × n

Special Types of Matrices

Diagonal Matrix: aᵢⱼ = 0 for i ≠ j
Scalar Matrix: aᵢⱼ = k for i = j, aᵢⱼ = 0 for i ≠ j
Identity Matrix: aᵢⱼ = 1 for i = j, aᵢⱼ = 0 for i ≠ j

Matrix Operations

A + B = [aᵢⱼ + bᵢⱼ]
A - B = [aᵢⱼ - bᵢⱼ]
kA = [kaᵢⱼ]
AB = [Σⱼ aᵢⱼbⱼₖ] for (i,k)th element

Transpose of Matrix

A' = [bⱼᵢ] where bⱼᵢ = aᵢⱼ
(A + B)' = A' + B'
(AB)' = B'A'
(A')' = A

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Frequently Asked Questions

What topics are covered in Matrices for J&K CET?
Matrices is an important chapter in J&K CET Mathematics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Matrix Basics and Types, Matrix Operations - Addition and Subtraction, Scalar Multiplication and Matrix Multiplication, Transpose of Matrix.
How important is Matrices for J&K CET?
Matrices is a frequently tested chapter in J&K CET Mathematics. Questions from this chapter appear regularly in previous year papers. There are 321 practice questions available for this chapter.
How to prepare Matrices for J&K CET?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.

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