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cos(theta)= square root of 3 over 3

 May 13, 2019
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Not sure how to do this algebraically, but this graph should help: https://www.desmos.com/calculator/tkhyvf9tjo

The intersections between the \(y=cos(x)\) line and the \(y=\frac{\sqrt{3}}3\) line should be your answer.

 May 13, 2019

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