Find the inverse of the matrix (if it exists). $$\left[ \begin{array} { l l }
1 & 2 \
3 & 7
\end{array} \right]$$
A) $$\left[ \begin{array} { l l }
7 & 2 \
3 & 1
\end{array} \right]$$
B) $$\left[ \begin{array} { c c }
7 & - 2 \
- 3 & 1
\end{array} \right]$$
C) $$\left[ \begin{array} { l l }
- 7 & - 2 \
- 3 & - 1
\end{array} \right]$$
D) $$\left[ \begin{array} { c c }
- 7 & - 2 \
3 & 1
\end{array} \right]$$
E) $$\left[ \begin{array} { c c }
- 7 & 2 \
3 & - 1
\end{array} \right]$$

Question

Find the inverse of the matrix (if it exists). ​​ $$\left[ \begin{array} { l l } 
1 & 2 \
3 & 7
\end{array} \right]$$ ​
A)​ $$\left[ \begin{array} { l l } 
7 & 2 \
3 & 1
\end{array} \right]$$
B)​ $$\left[ \begin{array} { c c } 
7 & - 2 \
- 3 & 1
\end{array} \right]$$
C)​ $$\left[ \begin{array} { l l } 
- 7 & - 2 \
- 3 & - 1
\end{array} \right]$$
D)​ $$\left[ \begin{array} { c c } 
- 7 & - 2 \
3 & 1
\end{array} \right]$$
E)​ $$\left[ \begin{array} { c c } 
- 7 & 2 \
3 & - 1
\end{array} \right]$$

Quizplus · Accepted Answer

The Answer is B

Find the Inverse of the Matrix (If It Exists) [1237]\left[ \begin{array} { l l } 1 & 2 \\3 & 7\end{array} \right][13​27​]

Find the Inverse of the Matrix (If It Exists) $\left[ \begin{array} { l l } 1 & 2 \\3 & 7\end{array} \right]$