Trig Question: Exact value of ...... 1. The problem statement, all variables and given/known data Find the exact value of: sin(11"pi" / 2) without a calculator..... 2. Relevant equations 3. The attempt at a solution I don't understand how to solve this with the unit circle. What is my first step here?? My text book just gives the answer, and not how to solve it. THanks for any help!