I was wandering if anyone could help with this question:

"An alternating voltage v = 120sin(1000t + (pi/3) ) is maintained across a series circuit containing a 1Ω resistor, 400μF capacitor and 4.5mH inductor.

Calculate the output Voltage in Cartesian notation, taken from the resistor"

So far i have calculate Xc = 2.5 Ω and Xl = 4.5Ω but am unsure of the next step..

Any help would be greatly appreciated!