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

question 56

Multiple Choice

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)​ \[\left[ \begin{array} { c c }
• - 7 & 2 \\
• 3 & - 1
• \end{array} \right]\]