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  • Deprecated function: Optional parameter $account declared before required parameter $entity_type is implicitly treated as a required parameter in include_once() (line 1442 of /home/senemav/www/includes/bootstrap.inc).
  • Deprecated function: Optional parameter $account declared before required parameter $entity_type is implicitly treated as a required parameter in include_once() (line 1442 of /home/senemav/www/includes/bootstrap.inc).
  • Deprecated function: Optional parameter $account declared before required parameter $entity_type is implicitly treated as a required parameter in include_once() (line 1442 of /home/senemav/www/includes/bootstrap.inc).
  • Deprecated function: Optional parameter $input declared before required parameter $form_state is implicitly treated as a required parameter in include_once() (line 1442 of /home/senemav/www/includes/bootstrap.inc).

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Exercice

ÉNONCÉS DES EXERCICES

1. Ensembles de nombres 

Pour chacun des nombres suivants, trouver le plus petit ensemble de nombres $N, Z, D, Q$ ou $R$ auquel il appartient : 

a) $−18; 1,25; 7; 2π; −0,6666...; 0$. 

b) $− \dfrac{28}{5} ; \dfrac{3,1416}{π} ; \dfrac{901}{53} ; \dfrac{676}{2} ; \dfrac{53}{27}$ . 

c)$ 1,234567891011...; 246,81012...$ 

d) $−4,7×103; \dfrac{3}{2} ;\dfrac{ 1,111111... }{9}$

e) $1357,91357...; \dfrac{21}{560} ; \dfrac{2π}{5} ;\dfrac{ ( . \sqrt{7} +4)(\sqrt{7}−4)}{3} ; \dfrac{π+3}{π +1}$ .