6. Watson, chapter 11, exercise 3.
7. Consider the following game:
\begin{tabular}{|c|c|c|}
\hline
1/2 & A & B \\
\hline
A & 3,1 & 0,0 \\
B & 0,0 & 1,3 \\
\hline
\end{tabular}
(i) Find the Pure Nash Equilibrium (the ones that exist).
(ii) Is it possible to find a Mixed Nash Equilibrium?