00:01
Okay, i want to find this power by using the moeverse theorem.
00:04
So the first step is change it into polar form.
00:07
To do that, the best way is draw a diagram.
00:10
Here's the argan diagram.
00:12
Negative 3 root 3 and 3 will be over here somewhere.
00:18
Here is minus 3 root 3 and 3.
00:24
So i want to work out the length of the red line.
00:29
Well, if i square negative 3 root 3, i will get 27 and if i add 936 so it's 6.
00:42
So the length here is 6 from pythagoras.
00:46
Now the angle here i can work out pretty quickly.
00:50
Here is 3.
00:51
This length here is 3 root 3.
00:56
So it's a standard triangle.
00:58
If i divide by 3, each side i get 1, 2 root 3...