Consider the following LU decomposition of the given matrix: 1 -1 4 5 -3 6 0 0 oT2 1 -1 2 0 a22 U23 Uz4 0 0 a33 U34 2 1 -1 2 21 1 l31 32 1 41 42 l43 10 0 -2 5 -2 6 4 11 -4 B O a44 What is l43? O 2 none of the choices O -2 O-1 O 3

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