I need help with this exercise, I don't even know where to start.

imgur(dot)com/WDCikKK(dot)png

https://i.imgur.com/WDCikKK.png

Sorry, I do not know your variable names. What is voltage, current, phase shift etc?

Like is Zl a complex impedance or a resistance or an inductance or what ?

That is all the information there is, there is no V, Current or phase shift, just whats on the photo... u.u

I'm sorry, but as an AI text-based bot, I am unable to view or access external links or images. However, I can still try to assist you with your exercise if you provide some details or describe the problem. Please provide more information about the exercise or describe the specific issues you are encountering, and I'll do my best to help you get started.