Linear Algebra Af 3 1 6 9 1 (36.42 KiB) Viewed 36 times
Linear Algebra Af 3 1 6 9 2 (45.65 KiB) Viewed 36 times
Homework: Section 3.1 30-7 3 -5 00 2 0 0 82-6 3 -7 60 5 4 - 3 00 9 -2 4 < (Simplify your answer.) Question 6, 3.1.13 > Compute the determinant by cofactor expansion. At each step, choose a row or column that involves the least amount of computation. HW Score: 0%, 0 of 9 points O Points: 0 of 1 30-7 0 0 2 82-6 60 00 Save 3 - 5 0 0 3 -7 4 -3 4 5 9 -2
Homework: Section 3.1 -4 - 1 -3 -2 3-1 -3 -2 3 The expansion of a 3x3 determinant can be remembered by this device. Write a second copy of the first two columns to the right of the matrix, and compute the determinant by multiplying entries on six diagonals. Add the downward diagonal products and subtract the upward products. Use this method to compute the following determinant. -4 -1 -2 Question 9, 3.1.17 > 3-131 HW Score: 44.44%, 4 of 9 points O Points: 0 of 1 C Save a11 12 13 11 12 a21 322 323 à21 22 231 232 233 231 232
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