Scholarship Precalculus 5.1 Worksheet Answers 1. sin x 3 2 1 cos x 2 tan x 3 csc x 2 3 3 sec x 2 cot x 3 3 3. cos x 4. 1 sin y 7. cos 2 x 8. tan 2 x sec x 1 10. 2 csc 2 x 11. 5sec 13. 0 2. 1 csc x 5 5 2 6 5 6 cos x sec x 5 12 6 tan x cot x 2 6 12 sin x 5. sec 6. sec 4 x 9. 4 cot 2 x 12. sin 2 2 , cos 2 2