Question

URGENT !! exercitiul 5 a,b
dau coroana celui mai explicit raspuns

Answer 1

$a) z^{2} =(-1-i)^2=1+2i+i^2=2i \\ b)C \\ (-1-i)^2+(2+2i)(-1-i)+2i=2i-2(1+i)^2+2i= \\ =2i-2-4i+2+2i=0$