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

not -2

B

1

C

`-2`

D

either -2 or 1

Verified by Experts

The correct Answer is:

B

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