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(Solved): \[ A=\left[\begin{array}{rrr} -3 & 0 & 5 \\ x & 0 & 0 \\ 2 & 0 & 4 \end{array}\right] \] Evaluate \ ...




\[
A=\left[\begin{array}{rrr}
-3 & 0 & 5 \\
x & 0 & 0 \\
2 & 0 & 4
\end{array}\right]
\]
Evaluate \( \operatorname{det}(A) \)
\[ A=\left[\begin{array}{rrr} -3 & 0 & 5 \\ x & 0 & 0 \\ 2 & 0 & 4 \end{array}\right] \] Evaluate \( \operatorname{det}(A) \) by expanding it according to (a) the first row; (b) the third column; (c) the easiest row or column.


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