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Not just Trigonometry

Geometry Level 4

\[\large \csc^2\dfrac{\pi}{7} + \csc^2\dfrac{2\pi}{7} + \csc^2\dfrac{3\pi}{7} = \, ? \]

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Excel in math and science

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It's hard to learn from lectures and videos

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including olympiad champions, researchers, and professionals.

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by Vatsalya Tandon

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