Question Number 90360 by TawaTawa1 last updated on 23/Apr/20

Commented by TawaTawa1 last updated on 23/Apr/20

$$\mathrm{Please}\:\mathrm{help} \\ $$$$ \\ $$
Answered by frc2crc last updated on 23/Apr/20

$${if}\:{z}={x}+{iy}\:{and}\:\zeta\left({z}\right)=\mathrm{0}\:{then}\:{x}=\frac{\mathrm{1}}{\mathrm{2}} \\ $$