{"schema_version":3,"id":"home-ens-exos-008","url":"/questions/home-ens-exos-008/","theme":"ensembles","parcours":"commun|spe|ens_sci|techno","niveau":2,"type":"qcm","consigne":"Quelle proposition est correcte ?","amorce":"Classe √9.","choices":["√9 ∈ ℕ","√9 ∈ ℝ\\ℚ","√9 ∉ ℤ","√9 ∈ ℂ seulement"],"reponse":"√9 ∈ ℕ","correction":{"repere":"Calcule la racine avant de classer.","agis":"Remplace √9 par sa valeur exacte.","pourquoi":"√9 = 3, donc √9 appartient à ℕ.","verification":"La racine est ici un entier naturel."},"empreinte":"9721588af7fd8cbf1ef2f26b3d5aa37271a06d0b1efd344b7518f72adb920231","canonical_url":"https://unpointdeplus.com/questions/home-ens-exos-008/","memberships":[{"set_id":"ensembles-exercices","titre":"S’entraîner avec les ensembles de nombres","etape":"Exercice 8","position":8,"total":12,"set_url":"https://unpointdeplus.com/sets/ensembles-exercices/","url":"https://unpointdeplus.com/questions/home-ens-exos-008/"}],"navigation":{"set_id":"ensembles-exercices","titre":"S’entraîner avec les ensembles de nombres","position":8,"total":12,"revision":"1-4aa13e40437c1655ee9b8347-nav-4f53cda18c2baa0c","up":{"kind":"set","id":"ensembles-exercices","label":"Présentation du set","url":"https://unpointdeplus.com/sets/ensembles-exercices/"},"previous":{"kind":"question","id":"home-ens-exos-007","label":"← Question précédente","url":"https://unpointdeplus.com/questions/home-ens-exos-007/"},"next":{"kind":"question","id":"home-ens-exos-009","label":"Question suivante →","url":"https://unpointdeplus.com/questions/home-ens-exos-009/"}}}