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Question: using gaussjordan method to compute the inverse matrix of the...

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Using Gauss-Jordan method to compute the inverse matrix of the following matrices: (a) A-2 -1 (b) A -1 0 1 2 3 -2 Show the steps of your Gauss-Jordan transformation. Verify the result by computing AA To show a square matrix A is not invertible (that is A does not exist), you can also use the Gauss-Jordan method to show that. First,you apply the Gauss-Jordan method to transform [A | I] into a triangular form A| BI, where A is a lower triangular matrix. Then, if there exists a zero entry on the diagonal of A, then you can conclude that A is not invertible. Now, using this theory and the Gauss-Jordan method to show that A-2 0 -2 is not invertible. 5 2 3

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