Find the Minor $M _ { 13 }$ And Its Cofactor $C _ { 13 }$

Find the minor $M _ { 13 }$ and its cofactor $C _ { 13 }$ of the matrix $\left[ \begin{array} { c c c } 9 & - 6 & 24 \\ - 9 & 6 & - 18 \\ 3 & - 9 & 18 \end{array} \right]$ .

A)
$M _ { 13 } = \left| \begin{array} { l l } 9 & 24 \\ 3 & 18 \end{array} \right| = 90$
$C _ { 13 } = - 90$

B) $\quad M _ { 13 } = \left| \begin{array} { c c } - 6 & 24 \\ 6 & - 18 \end{array} \right| = - 36$
$C _ { 13 } = - 36$

C)
$\begin{array}{l}M_{13}=\left|\begin{array}{cc}-9 & 6 \\3 & -9\end{array}\right|=63 \\C_{13}=-63\end{array}$


D)
$M _ { 13 } = \left| \begin{array} { c c } - 6 & 24 \\ 6 & - 18 \end{array} \right| = - 36$
$C _ { 13 } = 36$

E)
$M _ { 13 } = \left| \begin{array} { c c } - 9 & 6 \\ 3 & - 9 \end{array} \right| = 63$
$$C _ { 13 } = 63$$

Correct Answer:

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