ya jma3a ahsbouli tawilea ta3 ''BC"fi bac 2009 sujet n2 science naturele
walah dawkhatni mane l barahe kifeh lkawha racine de 3
svpppp aidez moi walah rani hassale
zB=1/2(5-ijidre 3)
ZC=1+ijidre3
j'attends votre reponse
ana lguitha 3
houma jidre 3
kifahhh