Assume a \(0.8+j 0.4\) per unit load at bus 2 is being supplied by a generator at bus 1 through a transmission line with series impedance of \(0.05+j 0.1\) per unit. Assuming bus 1 is the swing bus with a fixed per unit voltage of \(1.0 / 0\), use the Gauss-Seidel method to calculate the voltage at bus 2 after three iterations.