Show that the given matrices are inverses in Problems 19-20. ([A]=left[begin{array}{rrr}-16 & -2 & 7 7

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Show that the given matrices are inverses in Problems 19-20.

\([A]=\left[\begin{array}{rrr}-16 & -2 & 7 \\ 7 & 1 & -3 \\ -3 & 0 & 1\end{array}ight]\); [B \(]=\left[\begin{array}{rrr}1 & 2 & -1 \\ 2 & 5 & 1 \\ 3 & 6 & -2\end{array}ight]\)

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