Question

How do you find the complex conjugate of `-6i`?

Answer 1

`6i`

Explanation:

Any complex number in rectangular form `z=x+iy` has complex conjugate given by `barz=x-iy`.

So in this case, `bar(0-6i)=0+6i=6i`.

Note that `z barz = x^2+y^2 in RR`.