Right next one, which is find the argument of Z one times Z two  Yeah, again a couple of different ways of doing it, what you can do is you find the argument of Z one, find the argument of Z two, and then what, what will we do for the  answers, add them together to get the  to,arguments to something worth  together, we add them, or we can work out Z one times Z two and then just find a modulist of that complex number, now which way do you want to do it?