Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 25E
Related questions
Question
5
Convert this identity to one using sine term(s) only.
1 - 2 cos2r =
2sin²r - 1
-1 - sin²r
1 - 2sin²r
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