Question

How do you find the complex conjugate of `-5i`?

Answer 1

Reverse the sign of the imaginary part to find the conjugate to be

`5i`

Explanation:

The complex conjugate of a complex number `a+bi` is `a-bi`.
If we put our number into the `a+bi` form, we have

`-5i = 0-5i = 0 + (-5)i`

Then, the complex conjugate of `-5i` is

`0 - (-5)i = 5i`