The system of linear equations x+y+z=2,2...

The system of linear equations `x+y+z=2,2x+y-z=3, 3x+2y+kz=4` has a unique solution if

A

`lambda!=0`

B

`-1ltlambdalt1`

C

`lambda=0 `

D

`-2ltlambdalt2`

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The correct Answer is:

A

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