Question

What is $\overline{Z}$ in complex numbers?

Answer 1

Complex number: The complex number is the combination of a real number and an imaginary number.

The complex number is represented by $Z=a+ib$ , where $a,b\in R$ and $i$ is an imaginary number.

In complex numbers, $\overline{Z}$ is a conjugate of a complex number $Z$.

A conjugate of a complex number is another complex number that has the same real part as the original complex number and the imaginary part has the same magnitude but opposite sign.

Suppose $Z=a+ib$ is a complex number, then the conjugate is $\overline{Z}=a-ib$.