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Math · Advanced Math
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Theorem 2. If A is a square matrix uith det(A)?0, then Adj(A) (4.22) , = det(A)4. To illustrate the issue of computational efficiency, compute A-1 for the following (4 x 4)-matrix A in two different ways: a) using the Gauss-Jordan method, and b) using (4.22). Which did you find to be shorter? 1 0-1 01 0 -1 1 0 1 0 0-1 A-

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