Consider the system of linear equations: -x1 + 2x2 + 3x3 + x4 = 3 2x1 - 4x2 + x3 + 2x4 = -1 -3x1 + 8x2 + 4x3 - x4 = 6 x1 + 4x2 + 7x3 - 2x4 = -4 i) Solve the systems of equations for x1, x2, x3, x4 utitilizing the Gauss-Jordan method.

Advanced Engineering Mathematics
10th Edition
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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Consider the system of linear equations:

-x1 + 2x2 + 3x3 + x4 = 3

2x1 - 4x2 + x3 + 2x4 = -1

-3x1 + 8x2 + 4x3 - x4 = 6

x1 + 4x2 + 7x3 - 2x4 = -4

i) Solve the systems of equations for x1, x2, x3, x4 utitilizing the Gauss-Jordan method.

ii) Obtain the Lower & Upper triangular matrices for the system of linear equations.

iii) Use the LU factorization obtained in iii) to solve for x1, x2, x3, x4.

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