Consider the matrix: 1 2 4 A= 2 5 -2 -1 2 1 (a) Reduce A to upper triangular form using elimination steps. (b) Write down the matrices E21, E31, E32 that turn A into triangular form. (c) Write down the matrix E such that EA is upper triangular.
Consider the matrix: 1 2 4 A= 2 5 -2 -1 2 1 (a) Reduce A to upper triangular form using elimination steps. (b) Write down the matrices E21, E31, E32 that turn A into triangular form. (c) Write down the matrix E such that EA is upper triangular.
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Transcribed Image Text:Consider the matrix:
1
2
4
A =
2 5
-2
-1
2
1
(a) Reduce A to upper triangular form using elimination steps.
(b) Write down the matrices E21, E31, E32 that turn A into triangular form.
(c) Write down the matrix E such that EA is upper triangular.
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Given matrix is as follows:
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