00:01
So given we have our diagram, we have our point here is at point p is at k3.
00:07
My image is a little small.
00:11
Yeah, k3.
00:13
We have our radius is 5.
00:17
And then this is alpha here.
00:20
So we got 1, 2, looks like 3 and 4.
00:26
So for part 1 here, we want to find the value of the...
00:32
One second here.
00:34
Okay, so first we want to find the value of k.
00:37
So if i make this into a triangle, it's going to go 3 up.
00:41
So k has to be a negative 4 because it makes a 3, 4, 5 triangle here.
00:47
Okay, then we want to find the tangent of alpha.
00:50
Well, tangent in the second quadrant is negative.
00:53
It's going to be opposite over adjacent, so it's going to be a negative 3 over 4 here.
00:58
Here...