In Exercises 24–26, use determinants to decide if the set of
25.
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- In Exercises 5–8, use the definition of to write the matrix equation as a vector equation, or vice versa.arrow_forwardIn Exercises 5–8, use the definition of Ax to write the matrix equation as a vector equation, or vice versa. 5. 5 1 8 4 -2 -7 3 −5 5 -1 3 -2 = -8 - [18] 16arrow_forwardEvaluate each determinant in Exercises 27–32. 27. 13 0 28. 4 3 2 2 1 1 -5 -1 4 2 -1 -3 5 29. 3 1 30. 2 -4 2 -3 4 -1 3. -5 4 1 1 2 3| 31. 2 2 32. -3 -3 4 -5 N 22N 3. लarrow_forward
- Evaluate each determinant in Exercises 1-10. 1. 5 7 2. 4 5 6 8 3 3. -4 1 4. 7 9. 6. -2 -5 5. -7 14 1 3 -4 -8 2 7. -5 8. -2 9. 10. 2 6. 2. 2. -IN-10arrow_forwardFind the determinants in Exercises 5–10 by row reduction to echelon form. just number 7arrow_forwardEvaluate the determinants 15 1) 12 6.arrow_forward
- 4. State and proof any 2 properties of Determinants.arrow_forward12.) Find the determinant of A = -2 3 1 -1 2 0 2 1 0 -2 1 * * 3 -3 4 Show your work.arrow_forwardCompute the determinants in Exercises 1–8 using a cofactor expansion across the first row. In Exercises 1–4, also compute the determinant by a cofactor expansion down the second column.arrow_forward
- 7. Using determinants, find the area of the triangle whose vertices are (-1,1), (2,2), and (-2,4). Write your entire procedure explicitly and in detail.arrow_forwardCompute the determinants in Exercises 9–14 by cofactor expansions. At each step, choose a row or column that involves the least amount of computation.arrow_forwardCompute the determinants in Exercises 1–8 using a cofactor expansion across the first row. In Exercises 1–4, also compute the determinant by a cofactor expansion down the second column. just number 5arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage