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Student Question

Secondary V • 1yr.
IMG_1382.jpeg

Je ne sais pas comment trouver les valeurs de x

Mathematics
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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

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    Team Alloprof • 1yr.

    Salut :D

    Tu peux réduire les expressions en utilisant les identités trigonométriques.

    image.png

    Aussi, cos -1 te sera utile pour déterminer la valeur de x au a).

    N'hésite pas si tu as d'autres questions :)

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