** Intro Music ** Hello friends Welcome to Pathshala channel. Please subscribe to Pathshala channel, because this video will be easy for you to find Let’s start with that before, I told the basic concept about metrics, ok Now we read the Exercise 3.1. Let’s see how it can be resolved. Well the matrix is ​​an easy chapter. It’s great to read it. Let’s make it In the matrix A=[ ] ek matrices are written in which the number inside 2,5,19 … is like this I had already done a discourse in a video that the signature of the matrix is ​​called it. The number of the metrics you are seeing is 2, 5, 19, -7, which is the element that we call, Ok Let’s look at the question say that –The Order of the Matrix that means let’s say that this matrix is ​​of how many orders it is.