$A=\left[\begin{array}{rr}-14 & 4 & -4 & 3 & 16
\\2 & 8 & 19 & 5 & 7
\\3 &0 & 9 & 2 & 8
\\-6 &-4 &-13 & 3 & 1
\\0 &-1 &12 & 0 & 7\end{array}\right]$
**$A_{5,4}=$** [[☃ math-keypad 1]]
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