I'm stuck on a few minor things in my coursework that I just need straightening out if anyone can help!!!

1. When doing an analysis of Rlc circuits, what is the voltage response? I've looked on the web and in notes but it talks about frequency response etc but not voltage response.

2. How do you convert things into phasor form? Or notation. I have Acos(ωt +θ) but that's where I get stuck. The value to convert is 8cos(t+∏/4)v. So I'm not quite sure how to kinda fit the numerical values into the equation, do you then also have to convert the values of the resistors and capacitors as well?

Sorry I know it's 2 separate questions in one post, I just didn't want to smiling up the forum with too many posts!

Any help would be really appreciated

Thank you!