Multiplicative Inverses of Matrices and Matrix Equations
1 Find the Multiplicative

Multiple Choice

Multiplicative Inverses of Matrices and Matrix Equations
1 Find the Multiplicative Inverse of a Square Matrix
- $$A = \left[ \begin{array} { r r r } 1 & 0 & 0 \\- 5 & 1 & 0 \\0 & 2 & 1\end{array} \right]$$

A)
$\left[ \begin{array} { r r r } 1 & 0 & 0 \\ 5 & 1 & 0 \\ - 10 & - 2 & 1 \end{array} \right]$
B)
$\left[ \begin{array} { r r r } 1 & 0 & 0 \\ - 5 & 1 & 0 \\ 0 & 0 & 2 \end{array} \right]$
C)
$\left[ \begin{array} { r r r } 1 & 2 & 10 \\ 0 & 1 & 1 \\ 0 & 0 & 1 \end{array} \right]$
D)

$\left[ \begin{array} { r r r } 1 & 0 & 0 \\ 2 & - 1 & 0 \\ 10 & - 5 & 1 \end{array} \right]$