Determine Whether the Matrices Are Inverses$$\left[ \begin{array} { l l }
9 & 4 \
4 & 4
\end{array} \right] , \left[ \begin{array} { r r }
- 0.2 & 0.2 \
0.2 & - 0.45
\end{array} \right]$$

Question

Determine Whether the Matrices Are Inverses$$\left[ \begin{array} { l l } 
9 & 4 \
4 & 4
\end{array} \right] , \left[ \begin{array} { r r } 
- 0.2 & 0.2 \
0.2 & - 0.45
\end{array} \right]$$

Examlex · Accepted Answer

The Answer of Determine Whether the Matrices Are Inverses$$\left[ \begin{array} { l l } 
9 & 4 \
4 & 4
\end{array} \right] , \left[ \begin{array} { r r } 
- 0.2 & 0.2 \
0.2 & - 0.45
\end{array} \right]$$

Determine Whether the Matrices Are Inverses $\left[ \begin{array} { l l } 9 & 4 \\4 & 4\end{array} \right] , \left[ \begin{array} { r r } - 0.2 & 0.2 \\0.2 & - 0.45\end{array} \right]$

Definitions:

Determine Whether the Matrices Are Inverses [9444],[−0.20.20.2−0.45]\left[ \begin{array} { l l } 9 & 4 \\4 & 4\end{array} \right] , \left[ \begin{array} { r r } - 0.2 & 0.2 \\0.2 & - 0.45\end{array} \right][94​44​],[−0.20.2​0.2−0.45​]

Definitions:

Determine Whether the Matrices Are Inverses $\left[ \begin{array} { l l } 9 & 4 \\4 & 4\end{array} \right] , \left[ \begin{array} { r r } - 0.2 & 0.2 \\0.2 & - 0.45\end{array} \right]$