SOLUTION: Find the domain f(x)=1/(1-2cos x)

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Question 1118825: Find the domain f(x)=1/(1-2cos x)
Answer by greenestamps(13200) About Me  (Show Source):
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All real numbers except those that make the denominator 0; i.e., those for which cos(x) = 1/2.

So all real numbers except (1) pi/3+2k(pi) and (2) 5pi/3+2k(pi).