These are solved class 9 math Ex 1.5 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 1.5 of chapter 1(Matrices and Determinants).

## Class 9 Math Ex 1.5 Notes

## Download Class 9 Math Ex 1.5 Solution Notes Pdf

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## Chapter 1 **Exercise 1.5 Solution Notes PDF**

This is the Pdf notes of Solved class 9 math exercise 1.5. 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.

## Multiplicative Inverse of a Matrix

The multiplicative inverse of a matrix is like the reciprocal of a number but for matrices. If you have a matrix A and there exists another matrix B such that when you multiply A by B (in any order), you get the identity matrix, then B is the multiplicative inverse of A.

In other words, if **A * B = B * A =** Identity Matrix, then B is the multiplicative inverse of A. Not all matrices have a multiplicative inverse, and those that do are called invertible or non-singular matrices.

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