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Omni-MATH / Does there exist an angle α∈(0,π/2) such that sinα, cosα, tanα and cotalpha, taken in some order, are consecutive terms of an arithmetic progression?

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problem

Does there exist an angle α∈(0,π/2) \alpha\in(0,\pi/2) such that sinα \sin\alpha, cosα \cos\alpha, tanα \tan\alpha and $ \cot\alpha$, taken in some order, are consecutive terms of an arithmetic progression?
Plain-text mathematical notation (without MathML)
Does there exist an angle α∈(0,π/2) such that sinα, cosα, tanα and $ \cot\alpha$, taken in some order, are consecutive terms of an arithmetic progression?
Original LaTeX notation
Does there exist an angle $ \alpha\in(0,\pi/2)$ such that $ \sin\alpha$, $ \cos\alpha$, $ \tan\alpha$ and $ \cot\alpha$, taken in some order, are consecutive terms of an arithmetic progression?

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