A) 4
B) 10
C) - 10
D) - 4
Correct Answer: B
Solution :
The cofactor of element 4, in the 2nd row and \[{{3}^{rd}}\] column is \[={{(-1)}^{2+3}}\left| \begin{matrix} 1 & 3 & 1 \\ 8 & 0 & 1 \\ 0 & 2 & 1 \\ \end{matrix} \right|\]=- {1(- 2) - 3 (8 - 0)+ 1.16} = 10.You need to login to perform this action.
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