Question 377727
If you mean
{{{z = -2 - i(2sqrt(3))}}}
{{{Mag = sqrt(4 + 4*3) = 4}}}
theta = arctan(sqrt(3)) in the 3rd Quad = 240º
--> 4 cis(240)
= 4(cos(240) + i*sin(240))
= 4(cos(4pi/3) + i*sin(4pi/3))