10. Find exact value of each expression. (a) cos(75°) + cos(15°) %3D (b) sin(45°) cos(15°)
10. Find exact value of each expression. (a) cos(75°) + cos(15°) %3D (b) sin(45°) cos(15°)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Transcribed Image Text:10. Find
exact value of each expression.
(a) cos(75°) + cos(15°)
%3D
(b) sin(45°) cos(15°)
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