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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).

COMPOSITION DU PREMIER SEMESTRE

EXERCICE 1 : 

$ABC$ est un triangle du plan tel que : $AB = 4cm , AC = 5cm$ et $\cos(\overbrace{A}) =\dfrac{3}{5}$.

1. Construire le triangle $ABC$ sans chercher une valeur approchée de l’angle $\overbrace{BAC}$ et expliquer la méthode utilisée. 

2. $A’$ est le milieu de $[BC]$ et $I$ est le barycentre des points pondérés $(A, 2), (B, −1)$ et $(C, 1)$

a) Démontrer que $AA’CI$ est un parallélogramme.