Solve for the exact solutions in the interval (0, 2x). List your answers separated by a comma, if it has no real solutions, enter DNE. cos(21) – con(x) = ()

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
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Solve for the exact solutions in the interval [0, 2x). List your answers separated by a comma, if it has no
real solutions, enter DNE.
cos(2z)
-cos(z) = 0
Hint: A substitution using a form of the double angle identity might be helpful.
Transcribed Image Text:Solve for the exact solutions in the interval [0, 2x). List your answers separated by a comma, if it has no real solutions, enter DNE. cos(2z) -cos(z) = 0 Hint: A substitution using a form of the double angle identity might be helpful.
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