Matrix Algebra

Inverse of a Matrix

Finding the Inverse of a Matrix: Row Echelon Form Method

We use the inverse of a Matrix to find the solution of a system of equations of 2 or 3 variables. One method for finding the inverse of a Matrix is called "Row Echelon Form", for which we use the Identity Matrix and solve.
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MAFS.912.A-REI.3.9

"Find the inverse of a matrix if it exists and use it to solve systems of linear equations (using technology for matrices of dimension 3 × 3 or greater)."

Helpful Links on Finding the Inverse of a Matrix

How online posters can be used to teach High School level Mathematics?

Nowadays, the use of any technological tools is essential in Education since students are surrounded for it most of their time. One way of making Mathematics fun and appealing for students is using Online Posters. High School level students tend to get distracted easily and it is easy to get their attention thru the internet, social media, and similar tools.


Online Posters give teachers and instructors the opportunity to share multiple information that can be helpful for students in a way that covers whatever material that is being taught in the classroom and that can be accessed anytime and from any device(computer, tablet/ipad, cellphone).