Question

express -1-i in polar form​

Answer 1

Step-by-step explanation:

r=|z|=√1+1=√2

since theta lie in the 3rd quadrent

amp(z)=-Π+alpha

tan alpha=|y/x|

=1

alpha=Π/4

therefore -Π+Π/4

=-3Π/4

polar form is √2[cos(-3Π/4)+isin(--3Π/4)]