2 - Complex Number Conjugates

The conjugate of a complex number will be denoted by adding a bar above that complex number, and is the same complex number but with the sign flipped on the imaginary part.
These numbers and form what's called a complex conjugate pair.

Notice what happens when you add up and multiply complex conjugates.

First, try adding.

Things get a tad more interesting when we multiply them.

This might already make sense to you, but even if it doesn't, you'll learn soon.

3 - Division of Complex Numbers

Interactive Graph