Math 3013 Quiz 3 Solutions

3 the second row of u 2 6 8 4 1 4 4 1 1 00 5 3 3 1

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Unformatted text preview: ∗ 2. The first column of L. of A, we have 2 6 8 4 By using matrix multiplication, the first row of U and the first column −1 −4 −4 −1 00 1 5 −3 3 = 1 0 4 07 2 0 1 ∗ ∗ 0 0 1 ∗ 0 2 −1 0 0 ∗ 0 0 0 100 0 ∗ ∗ 0 0 ∗ ∗ ∗ Now continue the process. 3. The second row of U . 2 6 8 4 −1 −4 −4 −1 1 00 5 −3 3 = 1 0 4 2 07 0 1 ∗ ∗ 0 0 1 ∗ 0 2 −1 0 0 −1 0 0 0 100 00 5 −3 ∗ ∗ 0∗ 4. The second column of L. 2 −1 6 −4 8 −4 4 −1 00 10 5 −3 3 1 = 1 0 4 0 07 2 −1 0 0 1 ∗ 0 2 −1 0 0 −1 0 0 0 100 00 5 −3 ∗ ∗ 0∗ 5. The third row of U . 2 6 8 4 −1 −4 −4 −1 10 00 5 −...
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This note was uploaded on 01/28/2014 for the course MATH 3013 taught by Professor Staff during the Fall '08 term at Oklahoma State.

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