If the system of equations {:(x-lamday-z...

If the system of equations `{:(x-lamday-z=0),(lamdax-y-z=0),(x+y-z=0):}}` has unique solution then the range of `lamda` is `R-{a,b}` Then the value of `(a^(2)+b^(2))` is :

A

1

B

2

C

4

D

9

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The correct Answer is:

B

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