Determine the current through $R$ shown in Eigure P13.66. Assume:
$$
\begin{array}{ll}
\overline{\mathbf{V}}_1=150 \angle 0 \mathrm{Vrms}, & \overline{\mathbf{V}}_2=150 \angle 2 \pi / 3 \mathrm{Vrms}, \overline{\mathbf{V}}_3=150 \angle 4 \pi / 3 \mathrm{Vrms}, \\
f=300 \mathrm{~Hz}, R=80 \Omega, C=0.3 \mu \mathrm{~F}, \text { and } L=80 \mathrm{mH} . &
\end{array}
$$