Show transcribed image text 1 point) (S. 1-5)) Given 1 3 1 A 2 7 4, 3 8 5 find elementary matrices EE2 Esuch that where U is an upper triangular matrix. Make your first step Eputs a 0 in the (3, 1) position. (Notice that A can be put in upper triangular form by three elementary row operations. Find elementary matrices corresponding to each of them. Remember order is important!) E1 E2 Es (All blanks must be filled in to receive any credit on this one.) Now notice that A-LU, where L = (E, E, E)-' Compute L – Notice that L is lower triangular with ones on the diagonal. This is called the LU factorization of A
1 point) (S. 1-5)) Given 1 3 1 A 2 7 4, 3 8 5 find elementary matrices EE2 Esuch that where U is an upper triangular matrix. Make your first step Eputs a 0 in the (3, 1) position. (Notice that A can be put in upper triangular form by three elementary row operations. Find elementary matrices corresponding to each of them. Remember order is important!) E1 E2 Es (All blanks must be filled in to receive any credit on this one.) Now notice that A-LU, where L = (E, E, E)-' Compute L – Notice that L is lower triangular with ones on the diagonal. This is called the LU factorization of A
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