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10 Nov 2019
-2 1 2 2. Given A 4 1 -2 (a) Find elementary matrices En, E2, and Es such that E32EA U where U is a upper triangular (b) Determine the inverse of E, E2, and Es. What is the lower triangular matrix L such that A (c) Use (a) and (b) to evaluate the determinant of A. (2 points) matrix. (3 points) LU? (3 points) 2 2p.) -2 0 -6-3 4
-2 1 2 2. Given A 4 1 -2 (a) Find elementary matrices En, E2, and Es such that E32EA U where U is a upper triangular (b) Determine the inverse of E, E2, and Es. What is the lower triangular matrix L such that A (c) Use (a) and (b) to evaluate the determinant of A. (2 points) matrix. (3 points) LU? (3 points) 2 2p.) -2 0 -6-3 4
Jean KeelingLv2
10 Nov 2019