Use the sum/difference identities to simplify the expression. Do not use a calculator. 종 COs 쥬 + sin sin 퓨 Cos CoS 18 18 Cos CoS 5n COS 6. Cos
Use the sum/difference identities to simplify the expression. Do not use a calculator. 종 COs 쥬 + sin sin 퓨 Cos CoS 18 18 Cos CoS 5n COS 6. Cos
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°.
Related questions
Question
Use the sum/difference identities to simplify the expression. Do not use a calculator.
cos(2pi/9) cos(pi/18) + sin(2pi/9) sin(pi/18)
Transcribed Image Text:Use the sum/difference identities to simplify the expression. Do not use a calculator.
쪽 COs 즙 + sin sin 표
Cos
18
18
Cos
CoS
O co
5n
COS
6.
Cos
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