Find the exact value of each of the following without a calculator. You must show the rotational angle in the x-y coordinate plane for each problem. Do not write work on the answer lines. 1. cos 930 1. 2. csc 23 4 2. 3. sec (1020°) 3. csc 4. 3 − 4 4. 5. cot (-540°) 5. cot 6. −17 6 6. 7. sin 10 3 7 8. tan     4   3  8. 9. cos 630 9. 10. cot −   15   4  10. 11. sec ( 225)−  11. 12. sec     19   2  12. 13. sin  −      5 6  13. 14. csc 780 14.