Fine all Nash Equilibria in the following games.

Q1. The first fame is given as follows:

L C R

U 7,7 4,2 1,8

M 2,4 5,5 2,3

D 8,1 3,2 0,0

Q2. The second game involves three players, where the i-th number in each cell represents player i't payoff.

player 3 uses z_1:

y_1 y_2

x_1 (1,5,3) (0,4,1)

x_2 (3,4,0) (1,3,-3)

player 3 uses z_2:

y_1 y_2

x_1 (-2,2,4) (6,-1,-1)

x_2 (-1,4,2) (3,1,2)