7. Given the two 4 x 4 lincar systems having the same coefficient matrix: XI -I + 21, - = 6, I- X + 21 - L = 1, -I +X = 4, I- As +4 = I, 2r, + 2 +3-4t, = -2. 21 ++3- 4L, = 2, --X2 +-X 5; -I +- =-1. a. Solve the lincar systems by applying Gaussian elimination to the augmented matrix I-1 2-1 6 1 -1 4 3. -4 -2 -1 -1 b. Solve the linear systems by finding and multiplying by the inverse of 1 -1 -1 1 -1 1 2 1 3 -4 -1 1 -1 Which method requires more operations? с.
7. Given the two 4 x 4 lincar systems having the same coefficient matrix: XI -I + 21, - = 6, I- X + 21 - L = 1, -I +X = 4, I- As +4 = I, 2r, + 2 +3-4t, = -2. 21 ++3- 4L, = 2, --X2 +-X 5; -I +- =-1. a. Solve the lincar systems by applying Gaussian elimination to the augmented matrix I-1 2-1 6 1 -1 4 3. -4 -2 -1 -1 b. Solve the linear systems by finding and multiplying by the inverse of 1 -1 -1 1 -1 1 2 1 3 -4 -1 1 -1 Which method requires more operations? с.
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter11: Systems Of Equations
Section11.5: Cramer's Rule
Problem 35PS
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