S. sin°e cose de= 1 .a O 120 60 b O 120cO 60

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 1ECP: Solve cos2x+cosx=0.
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2 sin°e cos³e de=
1
a O
120
60b O
120cO
1
60
Transcribed Image Text:2 sin°e cos³e de= 1 a O 120 60b O 120cO 1 60
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