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Evaaaa13
@Evaaaa13
May 2019
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J'ai besoin aide svp :
Calculer chaque expression numérique
- 999°2
- (√3-1)(√3+1)
Résoudre chaque équation
x°2= -36
x°2= 17
Merci beaucoup :)
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AhYan
-999² =-(1000-1)² =-(1 000 000-2000+1)=-998 001
-(√3-1)(√3+1)=-[(√3)² -1² ]=-(3-1)=-2
x°2= -36 pas de solution car x²<0
x²=17 => x=√17
1 votes
Thanks 1
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-(√3-1)(√3+1)=-[(√3)² -1² ]=-(3-1)=-2
x°2= -36 pas de solution car x²<0
x²=17 => x=√17