On considère les suites telles que, pour tout entier naturel n, , et . On peut affirmer que
QCM Term spé bac

Quiz
•
Mathematics
•
11th Grade
•
Hard

Hélène Duquesne
Used 1+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
est minorée par 1
est croissante
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
On considère la fonction définie pour tout réel x par .
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-1
0
0.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On considère une fonction h continue sur l'intervalle [-1 ; 1] telle que h(-1)=0, h(0) = 2 et h(1)=0.
On peut affirmer que :
h est croissante sur [-1 ; 0]
h est positive sur [-1 ; 1]
Il existe au moins un réel a dans [0 ; 1] tel que h(a) = 1
L'équation h(x)=1 admet exactement deux solutions dans l'intervalle [-1 ; 1]
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On suppose que g est une fonction dérivable sur [-4 ; 4]. Ci-dessus la représentation graphique de sa fonction dérivée g'.
On peut affirmer que :
g admet un maximum en -2.
g est croissante sur l'intervalle [1 ; 2]
g est convexe sur l'intervalle [1 2]
g admet un minimum en 0.
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