Question: 9. sin u + cot 11. sec - cos 0 sin 0 13. 13-28 Simplifying Trigonometric Expressions Simplify the trigonometric expression. sin x sec

9. sin u + cot 11. sec - cos 0 sin 0

9. sin u + cot 11. sec - cos 0 sin 0 13. 13-28 Simplifying Trigonometric Expressions Simplify the trigonometric expression. sin x sec x tan x 15. sin t + tant tan t 17. cosx + sinx cos x secx - 1 secx 19. 21. 23. 1 + cos y 1 + sec y 1 + sin u + 12. COS U + sin u 14. 16. + cot A csc A 18. sin a costa + cosa 20. cot 0 csc - sin 0 22. 24. cos x sec x cot x 1 secx cos x tan x - 1 + sin y 1 + csc y sin t - - cos t CON csc t

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