00:01
Using the given information, we need to find the values of the six trigonometric functions at the angle theta.
00:09
So we have first sign is opposite over hypotenuse.
00:17
So if we have a triangle, we call this theta.
00:22
Our opposite side is eight.
00:24
Our hypotenuse is 17.
00:26
So we do pythagorean theorem to figure out our missing side.
00:29
So this is c.
00:30
We'll call this a and we'll call this b.
00:33
So a squared plus b squared equals c squared.
00:37
8 squared plus b squared equals 17 squared.
00:41
B squared is equal to 17 squared minus 8 squared.
00:45
And we take the positive square root of both sides.
00:48
So the square root of 17 squared minus 8 squared comes out to b15.
00:54
So this is our missing side.
00:57
So from theta, this is our opposite...