Quel est le résultat de la suite arithmétique de premier terme 3 et de raison 4, au terme d'indice 5 (5e terme) ?

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✓ Correct answer: C. 19 Suite arithmétique : terme n = premier terme + (n–1) × raison. 5e terme = 3 + (5–1) × 4 = 3 + 16 = 19.

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Quel est le résultat de la suite arithmétique de premier terme 3 et de raison 4, au terme d'indice 5 (5e terme) ?

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