Problem2:Find the system of linear equations corresponding to the augmented matrix |
> ;
[3 0 -2 5]
[ ]
[7 1 4 -3]
[ ]
[0 -2 1 7]
|
|
SOLUTION:
| This is a 3 by 4 matrix so it corresponds to a system with 3 equtaions in 3 unknowns (x,y,z) say. Using the matrix we obtain the system, |
> ;
3 x - 2 z = 5
7 x + y + 4 z = -3
-2 y + z = 7