Given below are two statements: one is labelled as Assertion A and the other is
labelled as Reason R
Assertion A : The system of equations x + y + z = 4, 2x - y + 2z = 5, x - 2y - z =
3 has unique solution.
Reason R: If A is 3 x 3 matrix and B is a 3 x 1 non-zero column matrix. then the
equation AX = B has unique solution if A is non-singular.
In the light of the above statements, choose the most appropriate answer from the
options given below: