If \( A=\left[\begin{array}{lll}2 & 1 & 4 \\ 4 & 1 & 5\end{array}\right] \) and \( B=\left[\begi...
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0If \( A=\left[\begin{array}{lll}2 & 1 & 4 \\ 4 & 1 & 5\end{array}\right] \) and \( B=\left[\begin{array}{rr}3 & -1 \\ 2 & 2 \\ 1 & 3\end{array}\right] \), the
then write the orders of \( \mathrm{AB} \) and \( \mathrm{BA} \).
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