Question

What is complex conjugate of `-a-b`?

Answer 1

`-a-b`

Explanation:

Since every real number is a complex number with an imaginary part of `color(blue)0`, the given expression can be written as,

`-a-b+color(blue)0i`

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

`-a-b-0i`

However,

`-a-b+0i=-a-b-0i`

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