
QCM Suites
Authored by Fatiha Baroudi
Mathematics
9th - 12th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Abdel, chef de ventes du groupe Roulibre, désire calculer l'augmentation de ses ventes.
Il y a 3 ans, le groupe a vendu 25000 pneus de la marque. Les années suivantes, les ventes ont progressé de 8% par an.
On note (Vn) la suite représentant l'évolution des ventes par an.
Sachant que V1 = 25 000, que vaut V2 ?
29 000
26 000
27 000
25 650
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qu'elle est la nature de la suite (Vn) ?
La suite est géométrique
La suite est arithmétique
3.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Qu'elle est la raison de la suite (Vn) ?
1,25
5
2
1,08
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Exprimer (Vn) en fonction de n.
Vn =
25 000 + 1,25 ^(n-1)
Vn =
25 000 x 1,08^(n-1)
Vn = 25 000 + 5^(n-1)
Vn = 6 + 7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calculez V8
45 785
42 785
42 845
46 750
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Quelle est la bonne formule pour le calcul de somme d'une suite pour une suite géométrique ?
S =
U1 + ((q^n) -1) / q
S =
U1 x ((q^n) - 1) / q -1
S =
U1 x q^(n-1) / q
S =
U1 + U2 + U3 + ...... + Un
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Une suite géométrique est définie par U1 = 6 et q = 0,55.
Choisissez l'expression du terme Un : (et conservez l'expression que vous avez mis pour la question suivante)
Un = 0,55 X 6^(n-1)
Un = 6 x 0,55^N
Un = 6 x 0,55^(n-1)
Un = 0,55 x 6^(n-1)
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