Find the exact value of each of the following. In each case, show your work and explain the steps you take to find the value.
I am not sure how to approach this. I looked at the unit circle and know that all three of these go around the circle almost once or one time. Do I have to look at the reference angles for this? Also how does sin, tan and sec affect the answer?
I know tan (theta)=y/x, sec(theta)= 1/x and sin(theta)= y.