Verify the identity. (Simplify at each step.) 2 cos² B - 2 sin² ß = 2-4 sin² B 2 cos² B-2 sin² B = (2 (2- - - 2 sin² ß = 2-4 sin² B

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 67E
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Fill in the blank, thanks. 5.2
Verify the identity. (Simplify at each step.)
2 cos² B - 2 sin² ß = 2 - 4 sin² B
cos² B - 2 sin² B = (2-
2
-
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D
2 sin² ß = 2 - 4 sin²2 ß
Transcribed Image Text:Verify the identity. (Simplify at each step.) 2 cos² B - 2 sin² ß = 2 - 4 sin² B cos² B - 2 sin² B = (2- 2 - Need Help? Read It D 2 sin² ß = 2 - 4 sin²2 ß
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