A Note on the New Method of Computing the Inverse of 3 x 3 Square Matrices and Its Applications
Binandam Stephen Lassong *
Kumasi Technical University; Ghana.
Isaac Adu
Kumasi Technical University; Ghana.
Munkaila Dasumani
University of Cape Coast; Ghana.
Kwesi Frempong Sarfo
Kumasi Technical University; Ghana.
*Author to whom correspondence should be addressed.
Abstract
Computing the inverse of 3 x 3 square matrices using known methods such as Gauss-Jordon Method needs more time. During examination, candidates need to go through long process to find the inverse of 3 x 3 square matrices. Some students also find it very difficult and confusing when using Gauss-Jordon and Adjugate methods to find the inverse of the matrix. In this note, we present a new method that is simple and easy way of finding the inverse of 3 x 3 square matrices. We further give some applications of matrices in the real world phenomenon. Many other challenging problems can be addressed surprisingly by applying this strategy.
Keywords: Matrix, inverse, adjoint, applications, new method, computing