tan (217 a) + tan (-a −20π) + tan 11 sin 7π 2 - sin² (a 3π -) - cos² (a + Sz) 2 2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 44E
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Question
tan (21π –a) + tan (-a −207) + tan 11
3π
sin
7π
2
sin² (a
2
-) − cos² (a +
5TT
2
Transcribed Image Text:tan (21π –a) + tan (-a −207) + tan 11 3π sin 7π 2 sin² (a 2 -) − cos² (a + 5TT 2
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