Answer
$x = \frac{\pi}{3}~~$ or $~~x = \frac{5\pi}{3}$
Work Step by Step
We can find the values of $x$:
$2~cos~x - 1 = 0$
$2~cos~x = 1$
$cos~x = \frac{1}{2}$
$x = \frac{\pi}{3}~~$ or $~~x = \frac{5\pi}{3}$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.