Quiz interactif : Maîtrisez les maths de 3ème année secondaire !

Question 1 sur 10 10:00

[{"id":70822,"question":"Quelle est la solution de l'équation 2x + 5 = 11 ?","option_a":"x = 3","option_b":"x = 4","option_c":"x = 2","option_d":"x = 5","option_e":"","option_f":"","bonne_reponse":"A","explication":"Soustraire 5 des deux côtés donne 2x = 6, puis diviser par 2 donne x = 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":70823,"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":70824,"question":"Quelle est la forme factorisée de x² - 9 ?","option_a":"(x - 3)(x + 3)","option_b":"(x - 9)(x + 1)","option_c":"(x - 3)²","option_d":"(x + 3)²","option_e":"","option_f":"","bonne_reponse":"A","explication":"Il s'agit d'une différence de carrés : x² - 9 = (x - 3)(x + 3).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":70825,"question":"La probabilité d'un événement impossible est égale à :","option_a":"0","option_b":"1","option_c":"0.5","option_d":"100","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un événement impossible a une probabilité de 0.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":70826,"question":"La fonction f(x) = 3x + 2 est une fonction affine.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Une fonction affine a la forme f(x) = ax + b, ce qui est le cas ici.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":70827,"question":"Quelle est la valeur de sin(30°) ?","option_a":"0.5","option_b":"√2\/2","option_c":"1","option_d":"0","option_e":"","option_f":"","bonne_reponse":"A","explication":"La valeur de sin(30°) est 0.5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":70828,"question":"Un polygone régulier a tous ses côtés et angles égaux.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"C'est la définition d'un polygone régulier.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":70829,"question":"Résoudre l'inéquation 3x - 7 \u003E 2.","option_a":"x \u003E 3","option_b":"x \u003E 5","option_c":"x \u003C 3","option_d":"x \u003C 5","option_e":"","option_f":"","bonne_reponse":"A","explication":"Ajouter 7 donne 3x \u003E 9, puis diviser par 3 donne x \u003E 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":70830,"question":"La dérivée de la fonction f(x) = x² est f'(x) = 2x.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"La dérivée de x² est bien 2x.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":70831,"question":"Quelle est la médiane d'un triangle ?","option_a":"Une droite qui passe par un sommet et le milieu du côté opposé","option_b":"Une droite qui divise l'angle en deux","option_c":"Une droite perpendiculaire à un côté","option_d":"Une droite qui passe par deux sommets","option_e":"","option_f":"","bonne_reponse":"A","explication":"La médiane d'un triangle est une droite qui relie un sommet au milieu du côté opposé.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]