Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.3: Solving Trigonometric Equations
Problem 10ECP
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![Find cos(2A), if sin(A) =
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45
53
"
and A is in quadrant 3.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6f527874-788c-4348-a581-50237b5b9478%2Fb017fd16-2c47-4b0b-94e1-32dd8f090f2b%2F385neqm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Find cos(2A), if sin(A) =
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45
53
"
and A is in quadrant 3.
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