Question
Use the given information to find $A$$$A^{-1}=\left[\begin{array}{ll}2 & -1 \\3 & 5\end{array}\right]$$
Step 1
Step 1: The formula to find the inverse of a 2x2 matrix is as follows: If $A=\left[\begin{array}{cc}a & b \\ c & d\end{array}\right]$, then $A^{-1}=\frac{1}{ad-bc}\left[\begin{array}{cc}d & -b \\ -c & a\end{array}\right]$ Show more…
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