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    Invertible Lower Triangular Matrix, Adjoints and Inverses

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    Find A^-1 using Theorem 2.1.2 - Inverse of a Matrix Using Its Adjoint: If A is an invertible matrix,
    then A-1 = [1/det(A)] * [adj(A)]

    A = 2 0 3
    0 3 2
    -2 0 -4

    Prove that if A is an invertible lower triangular matrix, then A-1 is lower triangular.

    See attached file for full problem description.

    © BrainMass Inc. brainmass.com December 15, 2022, 5:57 pm ad1c9bdddf
    https://brainmass.com/math/matrices/invertible-lower-triangular-matrix-adjoints-inverses-115827

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    An Invertible Lower Triangular Matrix, Adjoints and Inverses are investigated. The solution is detailed and well presented.

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