00:01
Okay, so in this problem, it gives us what our value of sign is.
00:05
And so then we just have to visualize this real quick.
00:10
So let's look at this right triangle over here.
00:14
Let's call this angle theta.
00:17
So remember sokatoa, so our sign is going to be the opposite over the hypotenuse.
00:30
So our a is going to be the opposite angle of theta.
00:35
So that's going to be our a right there.
00:38
And our b is going to be the hypotenuse.
00:44
And then this other angle, or this other side down here, we can use the pythagorean theorem.
00:53
So a squared plus b squared equals c squared.
00:58
Except in this case, our a squared see the same...