Quiz Maths 1ère Année : Algèbre et Géométrie

Question 1 sur 10 10:00

[{"id":33033,"question":"Quelle est la solution de l'équation 3x - 5 = 10 ?","option_a":"x = 5","option_b":"x = 15\/3","option_c":"x = 15","option_d":"x = 5\/3","option_e":"","option_f":"","bonne_reponse":"C","explication":"3x - 5 = 10 → 3x = 15 → x = 5. La solution est x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33034,"question":"Le théorème de Pythagore s'applique-t-il à tous les triangles ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le théorème de Pythagore ne s'applique qu'aux triangles rectangles.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33035,"question":"Simplifiez l'expression : 2a + 3a - 5a.","option_a":"0","option_b":"a","option_c":"6a","option_d":"-a","option_e":"","option_f":"","bonne_reponse":"A","explication":"2a + 3a - 5a = (2+3-5)a = 0a = 0.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33036,"question":"Si un triangle a des côtés de longueurs 3, 4 et 5, est-il rectangle ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"3² + 4² = 9 + 16 = 25 = 5². Le triangle est rectangle d'après le théorème de Pythagore.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33037,"question":"Quelle est la valeur de x dans l'inéquation 2x + 7 \u003E 15 ?","option_a":"x \u003E 4","option_b":"x \u003C 4","option_c":"x \u003E -4","option_d":"x \u003C -4","option_e":"","option_f":"","bonne_reponse":"A","explication":"2x + 7 \u003E 15 → 2x \u003E 8 → x \u003E 4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33038,"question":"Le produit de deux nombres négatifs est-il positif ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un nombre négatif multiplié par un autre nombre négatif donne un résultat positif.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33039,"question":"Calculez : (-3)².","option_a":"9","option_b":"-9","option_c":"6","option_d":"-6","option_e":"","option_f":"","bonne_reponse":"A","explication":"(-3)² = (-3) × (-3) = 9.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33040,"question":"Dans un triangle isocèle, les angles à la base sont-ils égaux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Par définition, un triangle isocèle a deux angles égaux (ceux opposés aux côtés égaux).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33041,"question":"Résolvez : 5(x - 2) = 3x + 10.","option_a":"x = 10","option_b":"x = 5","option_c":"x = 0","option_d":"x = 20","option_e":"","option_f":"","bonne_reponse":"A","explication":"5x - 10 = 3x + 10 → 2x = 20 → x = 10.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":33042,"question":"La racine carrée de 16 est-elle égale à 4 ou -4 ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"La racine carrée est toujours positive. √16 = 4 (et non -4).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]