If ${z_1},{z_2},{z_3}$be three non-zero complex number, such that ${z_2} \ne {z_1},a = |{z_1}|,b = |{z_2}|$ and $c = |{z_3}|$ suppose that $\left| {\begin{array}{*{20}{c}}a&b&c\\b&c&a\\c&a&b\end{array}} \right| = 0$, then $arg\left( {\frac{{{z_3}}}{{{z_2}}}} \right)$ is equal to
$arg{\left( {\frac{{{z_2} - {z_1}}}{{{z_3} - {z_1}}}} \right)^2}$
$arg\left( {\frac{{{z_2} - {z_1}}}{{{z_3} - {z_1}}}} \right)$
$arg{\left( {\frac{{{z_3} - {z_1}}}{{{z_2} - {z_1}}}} \right)^2}$
$arg\left( {\frac{{{z_3} - {z_1}}}{{{z_2} - {z_1}}}} \right)$
The moduli of two complex numbers are less than unity, then the modulus of the sum of these complex numbers
Find the real numbers $x$ and $y$ if $(x-i y)(3+5 i)$ is the conjugate of $-6-24 i$
The inequality $|z - 4|\, < \,|\,z - 2|$represents the region given by
Let $\mathrm{z}$ be a complex number such that $|\mathrm{z}+2|=1$ and $\operatorname{Im}\left(\frac{z+1}{z+2}\right)=\frac{1}{5}$. Then the value of $|\operatorname{Re}(\overline{z+2})|$ is :
Which of the following are correct for any two complex numbers ${z_1}$ and ${z_2}$