Double Angle Formulas sin 20 = 2 sin cos cos 20 = cos² e-sin² e sin 20 tan 20- cos20 tan 20 - or - 2 tan 8 1-tan² e Power Reducing Formulas (next assignment) Half Angle Formulas +/- determined by quadrant for 8/2 (next assignment)
Double Angle Formulas sin 20 = 2 sin cos cos 20 = cos² e-sin² e sin 20 tan 20- cos20 tan 20 - or - 2 tan 8 1-tan² e Power Reducing Formulas (next assignment) Half Angle Formulas +/- determined by quadrant for 8/2 (next assignment)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.1: Angles
Problem 56E
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