
suite géométrique (TMG)
Authored by david Moulineaud
Mathematics
KG
Used 3+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La suite v vérifie vn+1=5xvn ; elle donc
arithmétique
géométrique
ni arithmétique, ni géométrique.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Augmenter une quantité de 30% c'est la multiplier par
1,30
0,30
0,70
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diminuer une quantité de 20% c'est la multiplier par :
1,20
0,80
0,20
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La suite w vérifie wn=7x3n, la suite w est
géométrique de raison 7 et de premier terme 3.
géométrique de raison 3 et de premier terme 7.
w n'est pas une suite géométrique.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
u est la suite géométrique de raison 4 et u0=9. On a
un=4x9n
un=9x4n
un+1=9xun
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
u est une suite géométrique. On a u1=2 et u2=6. La raison de u est
1/3
4
3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La suite w vérifie wn+1=7xwn et w0=50
wn=50x7n
wn=7x50n
wn=7x50n-1
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