Solve the given homogeneous linear system. Compare your results to the results of the corresponding exercise in

Question:

Solve the given homogeneous linear system. Compare your results to the results of the corresponding exercise in Section TSS.
1.
x1 + 4x2 + 3x3 - x4 = 0
x1 - x2 + x3 + 2x4 = 0
4x1 + x2 + 6x3 + 5x4 = 0
2.
x1 - 2x2 + x3 - x4 = 0
2x1 - 4x2 + x3 + x4 = 0
x1 - 2x2 - 2x3 + 3x4 = 0