Matriz inversa 3x3. Método de Gauss-Jordan. Matriz con ceros en la diagonal

Corresponding to the second year of high school, this video calculates the inverse of a 3x3 matrix using the Gauss-Jordan method. The method consists of constructing a block matrix consisting of the matrix on the left and the identity matrix of the same order on the right, such that by applying Gauss-Jordan transformations (placing zeros above and below the main diagonal of the matrix to be inverted), the identity matrix is ​​obtained on the left side. If this can be achieved (it won't always be possible), the matrix will be invertible, and its inverse will be the matrix on the right of the block. What is curious and different in this case is that when starting the method, we realize that all the elements of the main diagonal (pivots) are zero. To solve this problem, a simple transformation is first applied to one of the rows. -- Subscribe -- https://goo.gl/g4Yb4y and activate the bell to receive notifications when a new video is uploaded. Use the hashtag #animopupilos **MATRICES Playlist** https://goo.gl/YysTqM **Connect with Math with Andrés** YouTube:    / matesconandres   Facebook:   / matesconandres   Twitter:   / matesconandres   Instagram:   / matesconandres   Google +: https://plus.google.com/+matesconandres **Partner Website** Math Blog: https://www.sacitametam.com