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Asked by Anonymous

what is a Trigonometric equation with solutions x = 5pi/6, 7pi/6
6 years ago

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Answered by oobleck
that is just π ± π/6
cosx is negative for those two angles, so something simple might be

cosx = -√3/2
6 years ago
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what is a Trigonometric equation with solutions x = 5pi/6, 7pi/6

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