These are solved class 9 math Ex 1.3 notes applicable for Class 9/ 9^{th}/ SSC-1/ Matric Part-I/ 9th Grade/ SSC Part-I/ High School/ O-Level/ General Science Group/ Humanities Group. Pdf of solved math chapter 1 (Matrices and Determinants) are provided. The Pdf’s contains notes of exercise 1.3 of chapter 1.

## Class 9 Math Ex 1.3 Notes PDF

## Download Class 9 Math Ex 1.3 Solution Notes Pdf

You can download the ex 1.3 solution notes pdf easily by following the below steps.

## Chapter 1 **Exercise 1.3 Solution Notes PDF**

This is the Pdf notes of Solved class 9 math exercise 1.3. It is same for Class 9/ 9^{th}/ SSC-1/ Matric Part-I/ 9th Grade/ SSC Part-I/ High School/ O-Level/ General Science Group/ Humanities Group Math book. The Notes are valid and are included in the syllabus and curriculum of FBISE(**Federal Board of Intermediate &Secondary Education**), Punjab Boards.

In Ex 1.3 of class 9 math chapter 1. The concept of matrices manipulation is teaches to the students. It is a important exercise of this chapter because it is dealing with advance matrix analysis.

## Addition and Subtraction of Matrices

Let A and B be any two matrices with real number entries. The matrices A and

B are conformable for addition, if they have the same order.

Let A = [3-by-3] and B = [3-by-3] are conformable for addition.

Addition of A and B, written A + B is obtained by adding the entries of the

matrix A to the corresponding entries of the matrix B.

## Subtraction of Matrices

If A and B are two matrices of same order, then subtraction of matrix B from

matrix A is obtained by subtracting the entries of matrix B from the corresponding

entries of matrix A and it is denoted by A- B.

Let A = [3-by-3] and B = [3-by-3] are conformable for Subtraction.

Addition of A and B, written A + B is obtained by adding the entries of the

matrix A to the corresponding entries of the matrix B.

## Laws Of Matrices

Following are the laws of matrices which are included in the class 9 math chapter 1 Ex 1.3.

### Commutative and Associative Laws of Addition of Matrices

**(a)** Commutative Law under Addition**(b)** Associative Law under Addition**(c)** Additive Identity of a Matrix.**(d)** Additive inverse of a Matrix.

These are the important and fundamentals concepts discussed briefly in the ex 1.3 of chapter 1 Matrices and Determinants. For the better preparation of exams this exercise hold an important status.

One should have all the basics knowledge of matrices addition and its types. Make sure to go through all the questions solutions and make sure to understand the concepts behind the solutions. If your are struggling with understanding the concepts you should learn the exercise using the imbedded video under the pdf.

Understand the concepts and move on to the next exercises. Because many important concepts related to matrices and determinants are discussed in the upcoming exercises. Navigate to the below mentioned buttons to proceed to the next or previous exercise.

Matrices and Determinants also hold very important in complex math problem solving and in many computer algorithm development. Proper understanding of Matrices and Determinants will motivate you to do much more than just solving questions.

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BEST OF LUCK FOR YOUR EXAMS!