6.3.9. 1 6.3.10. 1 x1 + x 2 + x3 + 3 x5 = 0 x 2 - x3 + 2 x 4 - x 5 = 0 4 x1 + 4 x 2 - 2 x3 + 6 x 4 + 3 x5 = 0 7 x + 2 x 2 + 4 x3 - 2 x 4 + 4 x5 = 0 6.3.11. 1 6.3.12. 2 x1 - 2 x 2 + x3 - x 4 + x5 = 0 x + 2x - x + x - 2x = 0 1 2 3 4 5 4 x1 - 10 x 2 + 5 x3 - 5 x 4 + 7 x5 = 0 2 x1 - 14 x 2 + 7 x3 - 7 x 4 + 11x5 = 0 x1 - x3 = 0 x -x =0 2 4 x1 - x3 + x5 = 0 - x1 + x3 - x5 = 0 x -x +x =0 2 4 6 - x 2 + x 4 - x 6 = 0 x1 - x 2 + x5 - x6 = 0 - x 3 + x5 = 0 x -x +x =0
x 2 - x3 + 2 x 4 - x5 = 0 x + 2x - x + x - 2x = 0 1 2 3 4 5 6.3.11. 6.3.12. 4 x1 + 4 x 2 - 2 x3 + 6 x 4 + 3x5 = 0 4 x1 - 10 x 2 + 5 x3 - 5 x 4 + 7 x5 = 0 7 x1 + 2 x 2 + 4 x3 - 2 x 4 + 4 x5 = 0 2 x1 - 14 x 2 + 7 x3 - 7 x 4 + 11x5 = 0 x1 - x3 = 0 x -x =0 x1 - x3 + x5 = 0 2 4 x -x +x =0 - x1 + x3 - x5 = 0 2 4 6 6.3.13. 6.3.14. x1 - x 2 + x5 - x6 = 0 - x 2 + x 4 - x6 = 0 x -x +x =0
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