I need full explanation about complex number.

Because I did not understand complex number.

Can someone explain this question with knowledge of complex number together?

" +i lm For 2 ,the quadrance is 3 4 'w 2 Q(w) = wv'v = le2 = it? = 3: +i and the principal argument 2 Re Arg(w) =[E ' 1012 Note: remember to use Pi for the numerical constant at. So w lies [select all that apply] in the rst quadrant 0 S Arg(z) g % a in the region Im(z) 2 0 n in the region Rc(z) 2 0 on the unit circle lzl = 1 ' on the line Re(z) V3 Im(z) = 0 on the line '5 Re(z) Im(z) = 0