If P = [(1,k,3),(1,3,3),(2,4,4)] is the ...

If `P = [(1,k,3),(1,3,3),(2,4,4)]` is the adjoint ofa `3 xx 3` matrix Q and det. (Q) = 6 then k is equal to

A

21

B

18

C

36

D

42

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The correct Answer is:

A

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