Question

locate the points representing the complex number $z$ for which
$\pi /3<\arg z\le 3\pi /2$

Answer 1

Here the point $z$ satisfying the condition lie on the portion of the Argand plane containing the second and third quadrants including the entire $y-$axis except the origin, and a portion of the first quadrant located between rays emerging from the origin at angle of $\pi /3$ and $\pi /2$