00:01
Okay, so being between pi over two and pi is telling me that we're in the second quadrant.
00:07
So we're somewhere over here.
00:09
I don't know exactly where.
00:10
I'm just giving you a visual.
00:12
And then sign, i think they use t.
00:16
If you think about it on the unit, not the unit circle, but just think of sign as being opposite over the hypotenuse.
00:25
So root three is the opposite, the hypotenuse is four.
00:30
So then if you want to figure out what this, i would call this x, because it's on the x squared, x squared plus root three squared equals four squared...