# What is complex conjugate of -a-b?

May 16, 2016

$- a - b$

#### Explanation:

Since every real number is a complex number with an imaginary part of $\textcolor{b l u e}{0}$, the given expression can be written as,

$- a - b + \textcolor{b l u e}{0} i$

To find the complex conjugate, negate the imaginary number, "$0 i$," which becomes "$- 0 i$." Writing out the expression, the complex conjugate would be,

$- a - b - 0 i$

However,

$- a - b + 0 i = - a - b - 0 i$

Thus, the complex conjugate of "$- a - b$" is "$- a - b$" itself.