Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 15E
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Question
![If cos 22.5° = IV A + √ B, then, by using a half-angle formula, find
A
B =
||](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F868a7cc3-2ad7-4fe7-9a39-259d78c013d4%2F0902cb3f-ce4a-4396-8b70-cf4163be34f2%2F30a3j3d_processed.png&w=3840&q=75)
Transcribed Image Text:If cos 22.5° = IV A + √ B, then, by using a half-angle formula, find
A
B =
||
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