The Purplemath Forums

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. 1. sin \frac{17\pi}{6} 2. tan \frac{13\pi}{4} 3. sec \frac{11\pi}{3} I am not sure how to approach this. I looked at the unit circle and know that all three of these go aroun...