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Compute the determinant using a cofactor expansion across the first row. Also compute the determinant by a cofactor expansion down the second column. 2 -2 4 3 1 4 - 1 Compute the determinant using a cofactor expansion across the first row. Select the correct choice below and fill in the answer box to complete your choice. (Simplify your answer.) O A. Using this expansion, the determinant is (2)(- 9) – (- 2)(-5) + (4)(11) =| O B. Using this expansion, the determinant is (- 2)(- 5)– (1)(- 6) + (4)(– 8) = | Oc. Using this expansion, the determinant is - (2)(- 9) + ( – 2)(– 5) – (4)(11) = O D. Using this expansion, the determinant is - (- 2)(- 5) + (1)(- 6) – (4)( – 8) =|

Compute the determinant using a cofactor expansion across the first row. Also compute the determinant by a cofactor expansion down the second column. 2 -2 4 3 1 4 - 1 Compute the determinant using a cofactor expansion across the first row. Select the correct choice below and fill in the answer box to complete your choice. (Simplify your answer.) O A. Using this expansion, the determinant is (2)(- 9) – (- 2)(-5) + (4)(11) =| O B. Using this expansion, the determinant is (- 2)(- 5)– (1)(- 6) + (4)(– 8) = | Oc. Using this expansion, the determinant is - (2)(- 9) + ( – 2)(– 5) – (4)(11) = O D. Using this expansion, the determinant is - (- 2)(- 5) + (1)(- 6) – (4)( – 8) =|

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.2: Determinants
Problem 10EQ: Compute the determinants in Exercises 7-15 using cofactor expansion along any row or column that...
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Compute the determinant using a cofactor expansion across the first row. Also compute the determinant by a cofactor expansion down the second column. 2 -2 4 3 1 2 1 4 1 -.... Compute the determinant using a cofactor expansion across the first row. Select the correct choice below and fill in the answer box to complete your choice. (Simplify your answer.) O A. Using this expansion, the determinant is (2)(- 9) - (- 2)( - 5) + (4)(11) = O B. Using this expansion, the determinant is (- 2)(- 5) - (1)(- 6) + (4)(- 8) = Oc. Using this expansion, the determinant is - (2)(- 9) + (- 2)(- 5) - (4)(11)=| O D. Using this expansion, the determinant is - (- 2)(-5) + (1)(- 6)- (4)(- 8) =
Transcribed Image Text:Compute the determinant using a cofactor expansion across the first row. Also compute the determinant by a cofactor expansion down the second column. 2 -2 4 3 1 2 1 4 1 -.... Compute the determinant using a cofactor expansion across the first row. Select the correct choice below and fill in the answer box to complete your choice. (Simplify your answer.) O A. Using this expansion, the determinant is (2)(- 9) - (- 2)( - 5) + (4)(11) = O B. Using this expansion, the determinant is (- 2)(- 5) - (1)(- 6) + (4)(- 8) = Oc. Using this expansion, the determinant is - (2)(- 9) + (- 2)(- 5) - (4)(11)=| O D. Using this expansion, the determinant is - (- 2)(-5) + (1)(- 6)- (4)(- 8) =
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