The value of inverse from the system of equations
2x - y + 3z = 9, x + y + z = 6, x - y + z = 2
As we have learned
System of simultaneous linear equation -
- wherein
The matrix
is called the coefficient matrix of the system of linear equation
The given system of equations can be written in matrix form as AX = B
where A = ,
We have |A| = -2 ¹ 0 i.e. A is non - singular and therefore A-1 exists.
We have A-1 = =
Therefore X = A-1 B =
Þ X = =
i.e.(x, y, z) = (1, 2, 3)
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