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Yaflysinay
@Yaflysinay
April 2019
1
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Aidez moi s'il vous plaît !
1) Développer et réduire (
) (
) puis
2) Soit E =
+ x - 4, calculer la valeur numérique de l'expression littérale E pour x = 1+
Détaillez les calculs merci ! :D
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danielwenin
Verified answer
1)
(
) (
) = V(1.3 )= V3
v= 2+1 = 3
F(x) = x² + x - 4
f(1+V2) = (1+V2)² + (1+V2) - 4 = 1 + 2 + 2V2 + 1 + V2+ - 4 = 3V2
0 votes
Thanks 1
yaflysinay
Merci, et le 2) ?
yaflysinay
Oh j'avais pas vu, vous avez fait le 2), mais dans le 1) que signifie les 2 parenthèses ( ) ( ) ???
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Lista de comentários
Verified answer
1) ( ) ( ) = V(1.3 )= V3v= 2+1 = 3
F(x) = x² + x - 4
f(1+V2) = (1+V2)² + (1+V2) - 4 = 1 + 2 + 2V2 + 1 + V2+ - 4 = 3V2