Solved: In 27 and 28, use the given matrices to find (AB) 1
Chapter 8, Problem 28(choose chapter or problem)
In Problems 27 and 28, use the given matrices to find \((AB)^{-1}\).
\(\mathbf{A}^{-1}=\left(\begin{array}{rrr} 1 & 3 & -15 \\ 0 & -1 & 5 \\ -1 & -2 & 11 \end{array}\right), \quad \mathbf{B}^{-1}=\left(\begin{array}{rrr} -1 & 1 & 0 \\ 2 & 0 & 0 \\ 1 & 1 & -2 \end{array}\right)\)
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