If lambda and mu are the cofactors of 3...

If `lambda` and `mu` are the cofactors of 3 and -2 respectively in the determinant `|{:(1,0,-2),(3,-1,2),(4,5,6):}|` the value of `lambda+mu` is

A

5

B

7

C

9

D

11

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The correct Answer is:

C

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