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Réponse :

Explications étape par étape

Bonsoir

[tex]-4\in \mathbb{Z} \subset \mathbb{D}\subset \mathbb{Q}\subset \mathbb{R}\\[5}\dfrac{2}{15} \in \mathbb{Q}\subset \mathbb{R}\\-45\in \mathbb{Z} \subset \mathbb{D}\subset \mathbb{Q}\subset \mathbb{R}\\1080\in \mathbb{N}\subset\mathbb{Z} \subset \mathbb{D}\subset \mathbb{Q}\subset \mathbb{R}\\\dfrac{30}{10}=3\in \mathbb{N}\subset\mathbb{Z} \subset \mathbb{D}\subset \mathbb{Q}\subset \mathbb{R}\\-\dfrac{3}{19}\in\mathbb{Q}\subset \mathbb{R}\\[/tex]

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