Mark the correct alternative in the following:
Let a, b, c be positive real numbers. The following system of equations in x, y and z
has
The given system of linear equations is :-
+ - = 1
- + = 1
- + + = 1
Let = p , = q , = r
The equation becomes,
+ - = 1
- + = 1
- + + = 1
The matrix equation corresponding to the above system of equation is
Let A =
|A| =
Taking common from , from and from we get,
|A| = = 0
A unique solution exists.