3sin²x - sinx - 2 =-cos²x - Зп 2 2п

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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How can I solve the following problem 

3sin²x - sinx-2=-cos²x
3π
N|S
2
,2π
Transcribed Image Text:3sin²x - sinx-2=-cos²x 3π N|S 2 ,2π
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why did you subtract 2pi from pi/6 and where did it come from

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