11. Write sin 445° cos 115° as a sum of two trigonometric functions and simplify where possible. Use the Product to Sum Identities. All values of 0 should be in the interval [0°,360°]. Be exact.
11. Write sin 445° cos 115° as a sum of two trigonometric functions and simplify where possible. Use the Product to Sum Identities. All values of 0 should be in the interval [0°,360°]. Be exact.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 56E
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