Find the inverse of the matrix $\left[ \begin{array} { c c }
- 8 & 14 \
- 4 & 7
\end{array} \right]$ (if it exists).
A) $\frac { 1 } { 4 } \left[ \begin{array} { l l }
7 & - 14 \
4 & - 8
\end{array} \right]$
B) $- \frac { 1 } { 8 } \left[ \begin{array} { c c }
7 & - 14 \
4 & - 8
\end{array} \right]$
C) $- \frac { 1 } { 4 } \left[ \begin{array} { c c }
- 7 & - 14 \
4 & 8
\end{array} \right]$
D) $\frac { 1 } { 7 } \left[ \begin{array} { c c }
- 8 & 14 \
- 4 & 7
\end{array} \right]$
E)does not exist

Question

Find the inverse of the matrix $\left[ \begin{array} { c c } 
- 8 & 14 \
- 4 & 7
\end{array} \right]$ (if it exists).
A)  $\frac { 1 } { 4 } \left[ \begin{array} { l l } 
7 & - 14 \
4 & - 8
\end{array} \right]$
B)  $- \frac { 1 } { 8 } \left[ \begin{array} { c c } 
7 & - 14 \
4 & - 8
\end{array} \right]$
C)  $- \frac { 1 } { 4 } \left[ \begin{array} { c c } 
- 7 & - 14 \
4 & 8
\end{array} \right]$
D)  $\frac { 1 } { 7 } \left[ \begin{array} { c c } 
- 8 & 14 \
- 4 & 7
\end{array} \right]$
E)does not exist

Quizplus · Accepted Answer

The Answer of Find the inverse of the matrix $\left[ \begin{array} { c c } 
- 8 & 14 \
- 4 & 7
\end{array} \right]$ (if it exists).
A)  $\frac { 1 } { 4 } \left[ \begin{array} { l l } 
7 & - 14 \
4 & - 8
\end{array} \right]$
B)  $- \frac { 1 } { 8 } \left[ \begin{array} { c c } 
7 & - 14 \
4 & - 8
\end{array} \right]$
C)  $- \frac { 1 } { 4 } \left[ \begin{array} { c c } 
- 7 & - 14 \
4 & 8
\end{array} \right]$
D)  $\frac { 1 } { 7 } \left[ \begin{array} { c c } 
- 8 & 14 \
- 4 & 7
\end{array} \right]$
E)does not exist

Find the Inverse of the Matrix [−814−47]\left[ \begin{array} { c c } - 8 & 14 \\- 4 & 7\end{array} \right][−8−4​147​]

Find the Inverse of the Matrix $\left[ \begin{array} { c c } - 8 & 14 \\- 4 & 7\end{array} \right]$