1) (10 pts)
a) Use node voltage analysis (must use supernode) to find voltages $V_1$, $V_2$, and $V_3$. NOTE: Voltage
values for the three voltages will come from this list: -30V, -26.66V, -20V, -13.33V, -10V, -5V, 0,
5V, 10V, 13.33V, 26.66V, 30V.
b) Use the node voltages to find all the currents indicated: $I_1$, $I_2$ and $I_3$.
c) Verify that the power delivered = power absorbed.