1 When A is invertible, MATLAB finds A by factoring LU (where L may be permuted lower triangular), inverting L and U, and then computing U¹L1. Use this method to compute the inverse of the given matrix A. 3-9 3 A = - 12 33 -6 0-3 3 Compute U1 and L-1. U1 = = Compute A 1. A = L-1 = where A = 100 - 4 1 0 0 1 1 3 -9 3 0-3 6 0 0 -3

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