Use matrices to solve the system of equations (if possible). Use Gauss-Jordan elimination. 2x + 2y - z = x - 3y + z = -32 -x + y = 16 8 Step 1 Write the associated augmented matrix for the system of linear equations. 2 2 -1 : 1 -3 1: -32 -1 1 0: 16 8 To write the matrix in row-echelon form, we apply elementary row operations until we obtain zeros below each of the leading 1s. First, interchange R1 and R2, and then interchange the new R2 and R3. Now the first column has a leading 1 in the upper-left corner. 1 -3 1: -32 -1 1 0 : 16 2 2 -1 : 8 Next, perform the operations (R1 + R2) on R2 and (-2R1 + R3) on R3. 1 -3 1: -32 -2 1: -3 72
Use matrices to solve the system of equations (if possible). Use Gauss-Jordan elimination. 2x + 2y - z = x - 3y + z = -32 -x + y = 16 8 Step 1 Write the associated augmented matrix for the system of linear equations. 2 2 -1 : 1 -3 1: -32 -1 1 0: 16 8 To write the matrix in row-echelon form, we apply elementary row operations until we obtain zeros below each of the leading 1s. First, interchange R1 and R2, and then interchange the new R2 and R3. Now the first column has a leading 1 in the upper-left corner. 1 -3 1: -32 -1 1 0 : 16 2 2 -1 : 8 Next, perform the operations (R1 + R2) on R2 and (-2R1 + R3) on R3. 1 -3 1: -32 -2 1: -3 72
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Matrices And Determinants
Section: Chapter Questions
Problem 4CC
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