Use the half-angle formulas to find the exact value of the trigonometric function sin 22.5°. ... sin 22.5° %3D (Type an exact answer, using radicals as needed.)

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.1: Using Fundamental Identities
Problem 1ECP: Use the conditions tanx=13 and cosx0 to find the values of all six trigonometric functions.
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Use the half-angle formulas to find the exact value of the trigonometric function sin 22.5°.
sin 22.5° =
%3D
(Type an exact answer, using radicals as needed.)
Transcribed Image Text:Use the half-angle formulas to find the exact value of the trigonometric function sin 22.5°. sin 22.5° = %3D (Type an exact answer, using radicals as needed.)
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