Math Quiz Review 7 Answer Key - Edubirdie

University:
East Georgia State College
Course:
MATH 1113 | Pre-Calculus
Academic year:

2023
Views:

31

Pages:

6
Author:

5CelestialChronicle

7.1-7.3 Quiz Review Name:________________________________ Pre-Calculus Simplify the trigonometric expression. 1. 2. 3. 4. ( ) Verify the identity. 5. 7. 6. ( ( )) 8. ( ) 9. 10. 11. 12. 13. 14. ( ( ) ) ( ) 15. 17. 19. 21. ( ( ) ) 16. ( ) ( ) 18. 20. ( ) Use an addition or subtraction formula to find the exact value of the expression. 22. sin 15º 23. cos 195º 24. tan Use a half-angle identity to find the exact value of the expression. 25. sin 75º 26. cos 27. tan 22.5º Find sin 2x, cos 2x, and tan 2x using the given information. 28. tan x = Find , 30. cos x = ; x in Q2 , and 29. sec x = 2; sin x < 0 using the given information. ; 180º < x < 270º 31. cot x = -5; 270º < x < 360º Answers: 1. 22. 2. √ √ 3. 23. √ √ 4. 24. √ 28. 5-21. Verify the identities √ 25. √ 26. √ 29. 30. √ 31. √ √ √ √ √ √ √ or √ √ √ 27. √ √

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