Find the inverse of the matrix (if it exists). $\left[ \begin{array} { c c }
4 & - 1 \
- 3 & 1
\end{array} \right]$
A) $\left[ \begin{array} { l l }
1 & 1 \
3 & 4
\end{array} \right]$
B) $\left[ \begin{array} { c c }
1 & 1 \
- 3 & 4
\end{array} \right]$
C) $\left[ \begin{array} { c c }
- 1 & 1 \
3 & 4
\end{array} \right]$
D) $\left[ \begin{array} { c c }
1 & 1 \
3 & - 4
\end{array} \right]$
E)Does not exist

Question

Find the inverse of the matrix (if it exists).   $\left[ \begin{array} { c c } 
4 & - 1 \
- 3 & 1
\end{array} \right]$  
A)  $\left[ \begin{array} { l l } 
1 & 1 \
3 & 4
\end{array} \right]$
B)  $\left[ \begin{array} { c c } 
1 & 1 \
- 3 & 4
\end{array} \right]$
C)  $\left[ \begin{array} { c c } 
- 1 & 1 \
3 & 4
\end{array} \right]$
D)  $\left[ \begin{array} { c c } 
1 & 1 \
3 & - 4
\end{array} \right]$
E)Does not exist

Quizplus · Accepted Answer

The correct answer is A because the inverse of the given matrix is $\left[ \begin{array} { l l } 1 & 1 \3 & 4\end{array} \right]$.

Find the Inverse of the Matrix (If It Exists) [4−1−31]\left[ \begin{array} { c c } 4 & - 1 \\- 3 & 1\end{array} \right][4−3​−11​]

Find the Inverse of the Matrix (If It Exists) $\left[ \begin{array} { c c } 4 & - 1 \\- 3 & 1\end{array} \right]$