If the system of equations
x + y + z = 6
x + 2y + 3z = 10
x + 2y + λ z = 0
has a unique solution, then λ is not equal to

(1)1
(2)0
(3)2
(4)3Correct

Question

If the system of equations x + y + z = 6 x + 2y + 3z = 10 x + 2y + z = 0 has a unique solution, then λ is not equal to

Accepted Answer

(4)

JEE Main 2012 Mathematics question