Question

What is the complex conjugate of 2?

Answer 1

`2`

Explanation:

A complex number is written in the form `a+bi`. Examples include `3+2i`, `-1-1/2i`, and `66-8i`.

The complex conjugates of these complex numbers are written in the form `a-bi`: their imaginary parts have their signs flipped. They would be: `3-2i,-1+1/2i`, and `66+8i`.

However, you're trying to find the complex conjugate of just `2`. While this may not look like a complex number in the form `a+bi`, it actually is! Think of it this way: `2+0i`

So, the complex conjugate of `2+0i` would be `2-0i`, which is still equal to `2`.

This question is more theoretical than practical, but it's still interesting to think about!