Hi this is my first time doind Arg and i dont know the method for solving this question, which is making me really frustrated.

The question says:

Find the Argument of z for each of the following in the interval [2,2pi]

A)

**Z=1-**√3i

B) Z=-√7

C) Z=55

D) -2-2√3i

can you guys please answear them i got like a whole 10 questions on this, and 1 more **thing** when it says tan

-1 is restricted to (–90°, 90°) or

does that mean it goes from 90 to 180 clockwise or like its the right hand side of the unit circle.

thnx pleeaseee help

thnx