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
- $$\mathrm { A } = \left[ \begin{array} { r r r r } 1 & 6 & 0 & 0 \\0 & 1 & - 1 & 0 \\0 & 0 & 1 & - 8 \\0 & 0 & 0 & 1\end{array} \right]$$

A)
$$\left[ \begin{array} { r r r c } 1 & - 6 & - 6 & - 48 \\0 & 1 & 1 & 8 \\0 & 0 & 1 & 8 \\0 & 0 & 0 & 1\end{array} \right]$$
B) $$\left[ \begin{array} { r r r r } 1 & 8 & - 8 & - 48 \\0 & 1 & 1 & 6 \\0 & 0 & 1 & - 6 \\0 & 0 & 0 & 1\end{array} \right]$$

C)
$$\left[ \begin{array} { r r r r } 1 & 0 & 0 & 0 \\8 & 1 & 0 & 0 \\- 8 & 1 & 1 & 0 \\- 48 & 6 & - 6 & 1\end{array} \right]$$
D)
$$\left[ \begin{array} { r r r r } 1 & 0 & 0 & 0 \\- 6 & 1 & 0 & 0 \\- 6 & 1 & 1 & 0 \\- 48 & 8 & 8 & 1\end{array} \right]$$