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-- Mathematics - Section B1
Determinants
Sum of the minor and the cofactor of the element 6 in the determinant $\left|\begin{array}{lll}2 & 3 & 1 \\ 4 & 5 & 6 \\ 7 & 8 & 9\end{array}\right|$ is:
-5
-10
10
0
The correct answer is Option (4) - 0