Find exact values for cach expression using sum and difference, double and half angle, or sum to product formulas tan(30° + 45°) cos(16°) cos(11º)–sin(16°) sin(11°) sin("/3 – "/4)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 19E
Question
Find exact values for each expression using sum and difference, double and half angle, or sum to product formulas
tan(30° + 45°)
cos(16°) cos(41°)–sin(16°) sin(44°)
• sin(#/3 – */4)
• sin(=/8) cos(=/8)
cos(15°)
• 2 cos (7/12) – 3
Transcribed Image Text:Find exact values for each expression using sum and difference, double and half angle, or sum to product formulas tan(30° + 45°) cos(16°) cos(41°)–sin(16°) sin(44°) • sin(#/3 – */4) • sin(=/8) cos(=/8) cos(15°) • 2 cos (7/12) – 3
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