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1. Apr 4, 2015

we know Complex number is consists of a real & imaginary number so if a+ib is a complex number which one is real part, imaginary part, real number and imaginary number?????
I think "a" real and "ib" imaginary part...plzz help me if Iam wrong ...

2. Apr 4, 2015

### Svein

As long as you have a and b real, a + ib is the standard representation of a complex number (and, of course, i is the imaginary unit with i2 = -1).

3. Apr 4, 2015

### jfizzix

the real and imaginary parts of a complex number are like $x$ and $y$ components of a vector.

The real part is the number of "ones" you have, and the imaginary part is the number if "i's" you have

Given a complex number $a+bi$
$a$is the real part
and
$b$ is the imaginary part

You have amount $a$ of "ones", and amount $b$ of "i's"

4. Apr 4, 2015

### Staff: Mentor

It's a little confusing at first, but the real part and the so-called imaginary part b, are real numbers.

5. Apr 4, 2015

### WWGD

Just to add that, to be precise, Complex numbers can also be represented in polar form.