1.

For a determinant \(\begin{vmatrix}a&b&c\\d&e&f\\g&h&i\end{vmatrix}\), the cofactor of h will be equal to which of the following?

A. (-1)3+2 \(\begin{vmatrix}a&c\\d&f\end{vmatrix}\)
B. (-1)3+2 \(\begin{vmatrix}d&f\\g&i\end{vmatrix}\)
C. (-1)3+2 \(\begin{vmatrix}a&c\\g&i\end{vmatrix}\)
D. (-1)3+2 \(\begin{vmatrix}b&c\\e&f\end{vmatrix}\)
Answer» B. (-1)3+2 \(\begin{vmatrix}d&f\\g&i\end{vmatrix}\)


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