Class 12 4. DETERMINANTS Introduction: NCERT Book Solutions

Class 12 chapter 4. DETERMINANTS Important key points for quick revision for board exams, ssc and upsc exams preparaion.

NCERT Solutions

All chapters of ncert books Mathematics-I 4. DETERMINANTS Introduction is solved by exercise and chapterwise for class 12 with questions answers also with chapter review sections which helps the students who preparing for UPSC and other competitive exams and entrance exams.

Class 12 chapter 4. DETERMINANTS Important key points for quick revision for board exams, ssc and upsc exams preparaion. - 4. DETERMINANTS - Introduction: NCERT Book Solutions for class 12th. All solutions and extra or additional solved questions for 4. DETERMINANTS : Introduction Mathematics-I class 12th:English Medium NCERT Book Solutions. Class 12 chapter 4. DETERMINANTS Important key points for quick revision for board exams, ssc and upsc exams preparaion.

4. DETERMINANTS : Introduction Mathematics-I class 12th:English Medium NCERT Book Solutions

NCERT Solutions ⇒ Class 12th ⇒ Mathematics-I ⇒ Chapter 4. DETERMINANTS:

Class 12 4. DETERMINANTS Introduction: NCERT Book Solutions

NCERT Books Subjects for class 12th Hindi Medium

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4. DETERMINANTS

Class 12 chapter 4. DETERMINANTS Important key points for quick revision for board exams, ssc and upsc exams preparaion.

Introduction

Determinant:

To every square matrix A = [aij] of order n, we can associate a number (real or
complex) called determinant of the square matrix A, where aij = (i, j)th element of A. This may be thought of as a function which associates each square matrix with a unique number (real or complex). If M is the set of square matrices, K is the set of numbers (real or complex) and f : M → K is defined by f (A) = k, where A ∈ M and k ∈ K, then f (A) is called the determinant of A.

It is also denoted by |A| or det A or Δ.

1. Determinant of Matrix of order One:

A = [a]

|A| = a

2. Determinant of Matrix of order Two: