The expression (cos 45°) (cos 30°) - (sin 45°) (sin 30°) can be rewritten as which of the following?
The expression (cos 45°) (cos 30°) - (sin 45°) (sin 30°) can be rewritten as which of the following?
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
|
a
|
sin 75° |
|
b
|
sin 15° |
|
c
|
cos 75° |
|
d
|
cos 15° |
Transcribed Image Text:The expression (cos 45°) (cos 30°) - (sin 45°) (sin 30°) can be rewritten as which of the following?
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