# How do you write the complex conjugate of the complex number 5 - 4i?

The reqd. complex conjugate is $\overline{z} = 5 + 4 i$
The Complex Conjugate $\overline{z}$ of a given complex no. $z = x + i y$ is, $\overline{z} = x - i y .$
Hence, the reqd. complex conjugate is $\overline{z} = 5 + 4 i$