SOLUTION: Please find the exact value of 'a': {{{ cos(a) + sqrt(3) = -cos(a)}}} Thank you for your time!

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Question 441144: Please find the exact value of 'a':
+cos%28a%29+%2B+sqrt%283%29+=+-cos%28a%29
Thank you for your time!
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Please find the exact value of 'a':
+cos%28a%29+%2B+sqrt%283%29+=+-cos%28a%29
..
cos(a) + √3 = -cos(a)
cos(a) +cos(a) = -√3
2cos(a)=-√3
cos(a)=-√3/2
a=2π/3 & 4π/3 radians in quadrants II & III