Be sure that you've familiarized yourself with the second set of formulas presented in this section by working 5–8 in the Concept and Vocabulary Check. In Exercises 9-22, express each sum or difference as a product. If possible, find this product's exact value. 9. sin 6x + sin 2r 10. sin &x + sin 2x 11. sin 7x - sin 3x 12. sin 11x – sin 5x 13. cos 4x + cos 2r 14. cos 9x - cos 7x 15. sin x + sin 2r 16. sin x – sin 2x 3x 17. cos+ cos 2 3x + sin 2 n 18. sin- 19. sin 75° + sin 15° 20. cos 75° - cos 15° 21. sin 12 5p sin 12 p 22. cos: 12 5p Cos 12
Be sure that you've familiarized yourself with the second set of formulas presented in this section by working 5–8 in the Concept and Vocabulary Check. In Exercises 9-22, express each sum or difference as a product. If possible, find this product's exact value. 9. sin 6x + sin 2r 10. sin &x + sin 2x 11. sin 7x - sin 3x 12. sin 11x – sin 5x 13. cos 4x + cos 2r 14. cos 9x - cos 7x 15. sin x + sin 2r 16. sin x – sin 2x 3x 17. cos+ cos 2 3x + sin 2 n 18. sin- 19. sin 75° + sin 15° 20. cos 75° - cos 15° 21. sin 12 5p sin 12 p 22. cos: 12 5p Cos 12
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.4: Mathematical Induction
Problem 46E
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