7) cos 330°

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.5: Multiple-angle And Product-to-sum Formulas
Problem 4ECP: Rewrite tan4x in terms of first powers of the cosines of multiple angles.
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7) cos 330°
9) tan –30°
I1
tan
13) cot-630°
100
Transcribed Image Text:7) cos 330° 9) tan –30° I1 tan 13) cot-630° 100
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