3. Find the determinant by row reduction to echelon form. 1 1 1 2 -5 - 1 2 9 - 4 3 -1 - 3 4 2. 3.

Elementary Linear Algebra (MindTap Course List)
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Author:Ron Larson
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Chapter3: Determinants
Section3.CR: Review Exercises
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3. Find the determinant by row reduction to echelon form.
3
1
- 5
- 1
2
9 - 4
3 -1 - 3
4
Use row operations to reduce the matrix to echelon form.
1
3
1
2 - 5
- 1
2
9 - 4
3 -1
- 3
4
Find the determinant of the given matrix.
1
3
2
- 5
(Simplify your answer.)
%3D
- 1
2
9 - 4
3 - 1 - 3
4
Transcribed Image Text:3. Find the determinant by row reduction to echelon form. 3 1 - 5 - 1 2 9 - 4 3 -1 - 3 4 Use row operations to reduce the matrix to echelon form. 1 3 1 2 - 5 - 1 2 9 - 4 3 -1 - 3 4 Find the determinant of the given matrix. 1 3 2 - 5 (Simplify your answer.) %3D - 1 2 9 - 4 3 - 1 - 3 4
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