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Chapter 7 of 27
Formula Sheet

DeterminantsFormula Sheet

Assam CEE · Mathematics

Free Determinants formula sheet for Assam CEE Mathematics 2026 — all important formulas, equations, and constants for quick reference.

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A visual representation defining a determinant as a scalar value associated with a square matrix, showing its notation and basic structure.
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Formula Sheet — Determinants

Important formulas and equations from Determinants for Assam CEE Mathematics.

Formulas — Determinants

Basic Definitions and Order Determinants

|A| = a (for 1×1 matrix A = [a])
|A| = a₁₁a₂₂ - a₁₂a₂₁
|A| = a₁₁(a₂₂a₃₃ - a₂₃a₃₂) - a₁₂(a₂₁a₃₃ - a₂₃a₃₁) + a₁₃(a₂₁a₃₂ - a₂₂a₃₁)
|kA| = kⁿ|A|

Properties of Determinants

|Aᵀ| = |A|
|AB| = |A| × |B|
|A⁻¹| = 1/|A|

Area of Triangle Using Determinants

Area = (1/2)|x₁(y₂-y₃) + x₂(y₃-y₁) + x₃(y₁-y₂)|
Area = (1/2)|det([x₁ y₁ 1; x₂ y₂ 1; x₃ y₃ 1])|

Adjoint and Inverse of Matrix

adj(A) = [Cᵢⱼ]ᵀ
A⁻¹ = (1/|A|) × adj(A)
A × adj(A) = |A| × I
|adj(A)| = |A|ⁿ⁻¹

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Frequently Asked Questions

What topics are covered in Determinants for Assam CEE?
Determinants is an important chapter in Assam CEE Mathematics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Introduction to Determinants, Properties of Determinants, Area of Triangle Using Determinants, Minors and Cofactors.
How important is Determinants for Assam CEE?
Determinants is a frequently tested chapter in Assam CEE Mathematics. Questions from this chapter appear regularly in previous year papers. There are 362 practice questions available for this chapter.
How to prepare Determinants for Assam CEE?
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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Practice questions, revision notes, formula sheet and AI doubt-solver for Assam CEE Mathematics.