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MonsieurFirdown
@MonsieurFirdown
January 2021
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bonsoir a tous aidez moi svp a ce dm j'y arrive pas
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blondinetteoceane88
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Bonsoir
Exercice1
H(x)=x²-1
1)a)h(5)=5²-1
h(5)=25-1
h(5)=24
h(-7)=(-7)²-1
h(-7)=49-1
h(-7)=48
b)h(x)=x²-1=8
x²=8+1
x²=9
x=-√9 ou x=√9
x=-3 ou x=3
2)a) g(x)=5x-4/3-2x
g(0)=5x0-4/3-2x0
g(0)=-4/3
g(-4)=5x(-4)-4/3-2x(-4)
g(-4)=-20-4/3+8
g(-4)=-24/11
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MonsieurFirdown
mrc bcp
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MonsieurFirdown
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Bonjour aidez moi pr l'exos 2 le 2 le 3 le 4 et le 5 svp
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Bonsoir pouviez vous m'aidez svp je ne comprend pas du tout ! mrc d'avance
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Verified answer
BonsoirExercice1
H(x)=x²-1
1)a)h(5)=5²-1
h(5)=25-1
h(5)=24
h(-7)=(-7)²-1
h(-7)=49-1
h(-7)=48
b)h(x)=x²-1=8
x²=8+1
x²=9
x=-√9 ou x=√9
x=-3 ou x=3
2)a) g(x)=5x-4/3-2x
g(0)=5x0-4/3-2x0
g(0)=-4/3
g(-4)=5x(-4)-4/3-2x(-4)
g(-4)=-20-4/3+8
g(-4)=-24/11