For an invertible matrix with an LU factorization A LU,both L and U will be invertible
Chapter 3, Problem 3.4.15(choose chapter or problem)
For an invertible matrix with an LU factorization A LU,both L and U will be invertible and A1 U1L1. InExercises 15 and 16, find L1, U1, and A1 for the givenmatrix.15. A in Exercise 1
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