Question: 1 - For the linear equations system Duration: 7 5 min. x 1 - x 2 + 2 x 3 - x 4 = -

1- For the linear equations system
Duration: 75min.
x1-x2+2x3-x4=-1
2x1+x2-2x3-2x4=-2
-x1+2x2-4x3+x4=1
3x1-3x4=-3
a) Find the augmented matrix.
b) Apply Gauss-Jordan Elimination to augmented matrix.
c) Find solutions of the system.
1- For the linear equations system Duration: 75min. x1-x2+2x3-x4=-1 2x1+x2-2x3-2x4=-2 -x1+2x2-4x3+x4=1

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