13. (a) cos (b) sec 3 (c) sin (-) (1) ese(-) 14. (a) tan (c) cot 15. (а) сos 6. (b) csc (c) tan 6. 16. (a) sin (b) sec (c) cot 6. to to
13. (a) cos (b) sec 3 (c) sin (-) (1) ese(-) 14. (a) tan (c) cot 15. (а) сos 6. (b) csc (c) tan 6. 16. (a) sin (b) sec (c) cot 6. to to
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 2E
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