
MATRIX INVERSION METHOD
Step-1 Convert the linear equation in the form
AX = B
where, A = a square non-singular matrix. A inverse exists.

Step-2

Problem-1





Problem-2

find the products of AB and BA. Then solve the system of equations
- x -y +z = 4
- x -2y – 2z = 9
- 2x +y + 3z = 1
Solution






Solution set: (x = 3, y = −2, z = −1).