For each of the following equations, solve for (a) all radian solutions and (b) x if0 <=x , 2p. Give all answers as exact values in radians. Do not use a calculator.   2 cos2 x + cos x - 1= 0

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter8: Rational Expressions And Equations
Section8.9: Use Direct And Inverse Variation
Problem 8.179TI: If p varies inversely with q and p=30 when q=12 find the equation that relates p and q.
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For each of the following equations, solve for (a) all radian solutions and (b) x if0 <=x , 2p. Give all answers as exact values in radians. Do not use a calculator.

 

2 cos2 x + cos x - 1= 0

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