|Class 12 Maths Matrices||Invertible Matrices|
If A is a square matrix of order m, and if there exists another square matrix B of the same order m, such that AB = BA = I, then B is called the inverse matrix of A and it is denoted by A– 1. In that case A is said to be invertible
Theorem: Inverse of a square matrix, if it exists, is unique.
Numerical: Using elementary transformations, find the inverse of the matrices