9. sin75°cos15° + sini5°cos75°

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.5: Product-to-sum And Sum-to-product Formulas
Problem 34E
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-tan 60
7.
1+tan140° tan 60°
using the sum and difference formulas and unit circle kr
9. sin75°cos15° + siniS°cos75°
11. cos105 cos60º + sin 105°sln60°
tan 75°-tan 30°
13.
1+tan 75° tan 30°
tan100° + tan50°
15.
1-tan100° tan 50°
5x
5T
17. cos-
COS
12
12
12
19. sin- COS-
3.
sin
COS
3
Transcribed Image Text:-tan 60 7. 1+tan140° tan 60° using the sum and difference formulas and unit circle kr 9. sin75°cos15° + siniS°cos75° 11. cos105 cos60º + sin 105°sln60° tan 75°-tan 30° 13. 1+tan 75° tan 30° tan100° + tan50° 15. 1-tan100° tan 50° 5x 5T 17. cos- COS 12 12 12 19. sin- COS- 3. sin COS 3
Use the sum and difference formulas with unit circle value
21. tan(-105°)
23. CoS
12
Use the sum and difference formulas and the given information
24
3.
sin x =
0<x< and sin y = <y <E
25. sin(x + y)
26. sin(y-
Transcribed Image Text:Use the sum and difference formulas with unit circle value 21. tan(-105°) 23. CoS 12 Use the sum and difference formulas and the given information 24 3. sin x = 0<x< and sin y = <y <E 25. sin(x + y) 26. sin(y-
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