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.
1