• Compute the voltage, v(t), as a function of time? v_{1}(t)=8 \cos (120 \pi t) v_{2}(t)=15 \cos \left(120 \pi t+90^{\circ}\right) v_{3}(t)=7 \cos \left(120 \pi t+35^{\circ}\right) v_{4}(t)=100 \cos \left(120 \pi t+65^{\circ}\right) v(t)=v_{4}(t)\left(\frac{v_{1}(t)+v_{2}(t)}{v_{3}(t)}\right)