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      <title>17 - Le cosinus - 4eme by Stéphane Bonot</title>
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         <title>Introduction à la trigonométrie</title>
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         <title>Exercices à faire en classe et/ou à la maison</title>
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         <title>Triangles égaux, triangles semblables</title>
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         <pubDate>2025-05-13 20:36:32 UTC</pubDate>
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         <title>Calculer la longueur d&#39;un côté avec le cosinus</title>
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         <title>Sur la piste du cosinus</title>
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