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Find all xE[0,2pi] that satisfy sin 2x + cos x = 0 x =

Find all xE[0,2pi] that satisfy sin 2x + cos x = 0 x =

Trigonometry (11th Edition)
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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Question

Find all xE[0,2pi] that satisfy sin 2x + cos x = 0

x = 

Expert Solution
Step 1

Topic- Trigonometric Equations

We are given,

sin(2x)+cos(x)=0

and x∈[0,2π]

We know that

sin(2x)=2sin x cos x

steps

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