Find all solutions of cos x = 1/2 in the interval [-3pi,3pi].

Could someone explain how to solve this? Cheers.

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- Jan 17th 2009, 08:45 AMHarisHyperbolic function?
Find all solutions of cos x = 1/2 in the interval [-3pi,3pi].

Could someone explain how to solve this? Cheers. - Jan 17th 2009, 08:57 AMJester