Problem:
Compute the nullity of
$\left(
\begin{array}{cc}
 \frac{61}{9} & -\frac{20}{3} \\
 \frac{80}{9} & \frac{67}{9} \\
\end{array}
\right)$.
Answer:
$0$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/rank_and_nullity/39057.txt'}