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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

1

B

not `-2`

C

either `-2` or 1

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:
D
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