Question

What is the complex conjugate of `1 + sqrt (-18)`?

Answer 1

`bar z=1-(sqrt(18))i`

Explanation:

The given number is `z`

`z=1+(sqrt(18))i`

To get the complex conjugate just replace `i` by `-i`.

`:.barz =1-(sqrt(18))i`

The property of complex conjugate is that

`zbarz = |z|^2`