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# Complex number on an Argand diagram watch

Mark the following on an Argand diagram:

{1 + (square root of 3)i}/2

I can cheat and mark the imaginary axis at roughly 1.73, but is there a more "correct" way to do this??
2. It is simply a sketch, just make sure you label the point.

Also, it would not be rougly 1.73, but infact 0.866 as it is
3. (Original post by DeccyJ)

Mark the following on an Argand diagram:

{1 + (square root of 3)i}/2

I can cheat and mark the imaginary axis at roughly 1.73, but is there a more "correct" way to do this??
For correct drawing use the polar coordinates

that is z is on the unit circle
4. That's super guys. I was thinking the same but I just wanted to be sure!

Thanks!
5. (Original post by ztibor)

that is z is on the unit circle
By the way: how do you write your mathematical notation in your posts?
6. (Original post by DeccyJ)
By the way: how do you write your mathematical notation in your posts?
You use LaTex: http://www.thestudentroom.co.uk/wiki/LaTex

$3x^2$ will come out as

$\displaystyle \frac {3x^2}{sin(\theta)}$ will come out as
Unparseable or potentially dangerous latex formula. Error 4: no dvi output from LaTeX. It is likely that your formula contains syntax errors or worse.
\displaystyle \frac {3x^2}{sin(\theta)

(Original post by ztibor)
For correct drawing use the polar coordinates

that is z is on the unit circle
Yep, this.

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