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Author(s) Manon Oreins
Deadline No deadline
Submission limit No limitation
Category tags Trigo

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Trigonométrie - Q30

(PrépaMDWoluwe)

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Sachant que \(0 < \alpha < \frac{\pi }{2}\) et que \(sin(\alpha )=sin(2\alpha )\) ,

que vaut \(\alpha \) ?