The system of equations alphax+y+z=alpha...

The system of equations `alphax+y+z=alpha-1, x+alphay+z=alpha-1, x+y+alphaz=alpha-1` has no solution if alpha is

A

`-2`

B

either `-2` or 1

C

not `-2`

D

1

Verified by Experts

The correct Answer is:

A

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