Question: An LDU factorization of a square matrix A is a factorization A = LDU, where L is a unit lower triangular matrix, D is a

An LDU factorization of a square matrix A is a factorization A = LDU, where L is a unit lower triangular matrix, D is a diagonal matrix, and U is a unit upper triangular matrix (upper triangular with l s on its diagonal). In Exercises, find an LDU factorization of A.
a. A in Exercise 1

b. A in Exercise 4

An LDU factorization of a square matrix A is a

1 1 0 1 5 2 001 010205 1 3-2-2 L 042042 -4-12-450 231200

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