If 45° + 60° = 105°, then use the sum formulas for sine and cosine to find the exact value of sin(105°) cos(105°)

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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If 45° + 60° = 105°, then use the sum formulas for sine and cosine to find the exact value of
sin(105°)
cos(105°)
Transcribed Image Text:If 45° + 60° = 105°, then use the sum formulas for sine and cosine to find the exact value of sin(105°) cos(105°)
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