If $\displaystyle y^{2}< x$ and $\displaystyle x\in \left ( -\infty ,0 \right )$ then $y$ must

What is the product of the complex numbers $\left( -3i+4 \right)$ and $\left( 3i+4 \right)$?

$\mathrm{z}=\mathrm{x}+\mathrm{iy}, \mathrm{z}_{1}=\mathrm{a}+\mathrm{ib}$ এবং $\mathrm{z}_{2}=\mathrm{c}+\mathrm{id}$ তিনটি জটিল সংখ্যা।

If $| z _ { 1 } | < 1 \text { and } | \frac { z _ { 1 } - z _ { 2 } } { 1 - \overline { z } _ { 1 } z _ { 2 } } | < 1 , \text { then } | z _ { 2 } | > 1$

If $z_ 1 = 2 \sqrt 2 (1 + i)$ and $z_2 = 1 + i \sqrt 3$, then $z_1^2 z_2^3$ is equal to