So 7 8 as a decimal is equal to 0.875.

This goes there. This matches that part.

So we have two mixed numbers here.

Don't you understand fractions and decimals?

One is a plus bi.

Now, in a simple network like this, straight enumeration would work fine, but in a more complex network, what variable elimination does is give us a way to combine together parts of the network into smaller parts and then enumerate over those smaller parts and then continue combining.

2 Real Part

3 Imaginary Part

So if we separated out the whole number parts and the fraction parts, this fraction is actually smaller.

So if I have a plus bi, where a is real and b is real, this is a complex number.

And so we could write this.

So, the first thing I'd like to do here is to just kind of get rid of these parentheses.

So that equals a plus b oh sorry.

So far when we've been adding these mixed numbers, the fraction part always ended up as a proper fraction.

So we just have to figure out the real and the imaginary parts.

Now 13 93.

Which of the following complex numbers is represented by the point on the graph below?

So, we just know that look this side is equal to that side

It's getting blunter and blunter.

The negative one times positive eight sixteenth so it's going to be minus, minus eight over sixteen.

That's five.

So we're done.

So when you add two complex numbers, all you do is you add the real parts to each other and you add the complex parts to each other.

little bit of both.

We have to rewrite the following fractions with fraction with least common denominator

4 Squared Real Part

5 Squared Imaginary Part

Well this simplifies to I'm going to go back here.

so it would evaluate to 2.

So in in this example, this complex number, our real part is 2.

That's that, and that.

This is a first degree denominator, and you say, OK.

I'll leave that up to you as an exercise.

For a tall part, we can hold the recommended one third length with a taller jaw

But when you have a number in the denominator, the larger it is, the smaller the fraction.

You wouldn't have to have two separate variables here.

Nothing fancy here. z sub one minus z sub two.

And that's the new real part.

The x axis is the real axis.

So you go 1, 2, 3, 4, 5.

So 5 2i.

But experimental science had been tied up with all those things.

This part right here is the real part.

And we are done.

5 versus 5.