Question

How do you find the conjugate of `5i - 4`?

Answer 1

`-4-5i`

Explanation:

To find a complex conjugate, simply change the sign of the imaginary part (the part with the `i`). This means that it either goes from positive to negative or from negative to positive.

As a general rule, the complex conjugate of `a+bi` is `a-bi`.

Notice that the real part of a complex number comes first. Your number, `5i-4`, can be rewritten as `-4+5i`.

Therefore, the complex conjugate of `-4+5i` is `-4-5i`.