Question

How do I write that a number is imaginary? Dumb, I know, but I forgot.

Answer 1

i

Answer 2

Correct?

Answer 3

just write i for example 6i, or 7i, etc.

Answer 4

yeaa!!!

Answer 5

All right, thanks. So now if I need to add it to something, say my number is5 and I need to add three, does it become 8i, or is it 5i + 3?

Answer 6

Lets see some \[\omega,\omega^2,i\] complex and imaginary numbers.

Answer 7

Eh?

Answer 8

Now lets talk about then

\[w=\frac{ -1+ i \sqrt{3} }{ 2 }\]

\[w^2=\frac{ -1- i \sqrt{3} }{ 2 }\]

and

\[i=\sqrt{-1}\]

Answer 9

Let's see how we get into this imaginary world \[\sqrt{4}=2\]

but
\[\sqrt{-4}=2i\]

Answer 10

Lets talk about adding


\[5i+3\neq8\]

So your'e wrong.

They will stay as they are

You cannot add Real and imaginary number.

Answer 11

Perfect, the last bit more or less makes sense.