Linear Algebra 3 1 1 2 1 (37.14 KiB) Viewed 52 times
Linear Algebra 3 1 1 2 2 (36.68 KiB) Viewed 52 times
Homework: Section 3.1 20 3 23 2 0 5 -1 Question 1, 3.1.1 Part 2 of 2 لا Compute the determinant using a cofactor expansion across the first row. Also compute the determinant by a cofactor expansion down the second column. (Simplity your answer.) OA. Using this expansion, the determinant is -(0)(-2) + (3)(-2)-(5)(-2) = B. Using this expansion, the determinant is (2)(-13)-(0)(-2) + (3)(10) = 4 O C. Using this expansion, the determinant is -(2)(-13) + (0)(-2)-(3)(10) = D. Using this expansion, the determinant is (0)(-2)-(3)(-2)+(5)(-2) = HW Score: 68.29%, 6.15 of 9 points Points: 0.5 of 1 Save (Simplify your answer.) O A. Using this expansion, the determinant is (0)(-2) – (3)(-2) + (5)(-2)=- OB. Using this expansion, the determinant is -(0)(-2)+(3)(-2)-(5)(-2)= O C. Using this expansion, the determinant is (2)(-13)-(0)(-2) + (3)(10)= O D. Using this expansion, the determinant is -(2)(-13) + (0)(− 2)— (3)(10) = Compute the determinant using a cofactor expansion down the second column. Select the correct choice below and fill in the answer box to complete your choice.
Homework: Section 3.1 Question 2, 3.1.3 Part 2 of 3 HW Score: 68.29%, 6.15 of 9 points Points: 0.33 of 1 O A. Using this expansion, the determinant is -(-5)(- 9) + (3)(9) — (8)(89). O B. Using this expansion, the determinant is (-5)(-39) + (3)(-39) + (8)(-39). Using this expansion, the determinant is -(-5)(-39) + (3)(-39) — (8)(-39). O D. Using this expansion, the determinant is (-5)(-9) + (3)(9)+ (8)(89). O C. Compute the determinant using a cofactor expansion across the first row. Also compute the determinant by a cofactor expansion down the second column. 5 -5 8 8 3 5 3 8 -3 Write the expression for the determinant using a cofactor expansion across the first row. Choose the correct answer below. OA. Using this expansion, the determinant is (5)(-49)+(-5)(-39) + (8)(55). O B. Using this expansion, the determinant is (5)(31)+(-5)(79) + (8)(73). C. Using this expansion, the determinant is (5)(-49)-(-5)(-39)+ (8)(55). O D. Using this expansion, the determinant is (5)(31)-(-5)(79) + (8)(73). Write the expression for the determinant using a cofactor expansion down the second column. Choose the correct answer below. Save
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!