$A=\left[\begin{array}{rr} 2 & 2
\\ -8 & -6 \end{array}\right] $ and
$B=\left[\begin{array}{rr} -\dfrac{3}{2} & -\dfrac{1}{2}
\\\\2 & \dfrac{1}{2} \end{array}\right]$
**Are $A$ and $B$ inverses?**
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